AMS Sectional Meeting Program by Day
Current as of Sunday, October 9, 2022 03:30:04
2022 Fall Eastern Sectional Meeting
 University of MassachusettsAmherst, Amherst, MA
 October 12, 2022 (Saturday  Sunday)
 Meeting #1180
Associate Secretary for the AMS Scientific Program:
Steven H Weintraub, Lehigh University shw2@lehigh.edu
Saturday October 1, 2022

Saturday October 1, 2022, 7:30 a.m.4:00 p.m.
Exhibit and Book Sale
N101, Integrated Learning Center
Organizers:
Eileen Muehlbauer, American Mathematical Society 
Saturday October 1, 2022, 7:30 a.m.4:00 p.m.
Registration
Lobby, Integrated Learning Center
Organizers:
Eileen Muehlbauer, American Mathematical Society 
Saturday October 1, 2022, 8:00 a.m.11:00 a.m.
Special Session on Connections Between Theoretical and Applied Dynamical Systems: A Session in Honor of the 60th Birthdays of Renato Feres and Boris Hasselblatt
S211, Integrated Learning Center
Organizers:
Timothy Chumley, Mount Holyoke College
Yao Li, University of Massachusetts yaoli@math.umass.edu
Hongkun Zhang, University of Massachusetts

8:00 a.m.
Falling into a cusp
Boris Hasselblatt*, Tufts University
Mark Levi, Penn State
(11803716015) 
8:30 a.m.
Maximally Mixing Braids And Their Physical Realization In Active Nematic Systems
Spencer Ambrose Smith*, Mount Holyoke College
(11803715526) 
9:00 a.m.
Global Graphs of the Metric Entropy of SRB Measures
Yunping Jiang*, The City University of New York, Queens College and Graduate Center
(118014884) 
9:30 a.m.
A datainformed meanfield approach to mapping of cortical parameter landscapes
Kevin K Lin, University of Arizona
ZhuoCheng Xiao*, New York University
LaiSang Young, New York University
(11809215820) 
10:00 a.m.
A Dynamical Systems Model of the Immune System and Viral Reexposure
Alanna R HoyerLeitzel*, Mount Holyoke College
(11803716135) 
10:30 a.m.
Dynamics of a threespecies competition model with mutation
Gabriela Jaramillo, University of Houston
Lidia Mrad*, Mount Holyoke College
Tracy L Stepien, University of Florida
(11803715887)

8:00 a.m.

Saturday October 1, 2022, 8:00 a.m.11:00 a.m.
Special Session on Geometric Aspects of Algebraic Combinatorics I
124, Hasbrouck Annex
Organizers:
Theo Douvropoulos, University of Massachusetts douvropoulos@math.umass.edu
Edward Lowell Richmond, Oklahoma State University
Vasu Tewari, University of Hawaii

8:00 a.m.
Oneskeleton posets of Bruhat interval polytopes
Christian Gaetz*, Cornell University
(11800515732) 
8:30 a.m.
Pop, Crackle, and Snap: The Many Facets of Shards
Colin Defant*, Princeton University
(11800516108) 
9:00 a.m.
Combinatorics and Braid Varieties
Nathan Ferd Williams*, University of Texas At Dallas
(11800516102) 
9:30 a.m.
Pattern avoidance and fibre bundle structure on Schubert varieties
Travis M Grigsby*, Oklahoma State University
(11800516189) 
10:00 a.m.
Permutation pattern avoidance and iterated fiber bundle structures on Schubert varieties
S M Faqruddin Ali Azam*, Oklahoma State University
(11800515585) 
10:30 a.m.
Criteria for Smoothness of Positroid Varieties via Pattern Avoidance, Johnson Graphs, and Spirographs
Sara C. Billey, University of Washington
Jordan Weaver*, University of Washington
(11800514950)

8:00 a.m.

Saturday October 1, 2022, 8:00 a.m.11:00 a.m.
Special Session on Nonlinear Waves and Applications: A Celebration of Dimitri Frantzeskakis 60th Birthday, I
121, Lederle Graduate Research Tower
Organizers:
Panos Kevrekidis, University of Massachusetts kevrekid@umass.edu
Ricardo Carretero, San Diego State University

8:00 a.m.
Solitons on the rarefactive wave background via the Darboux transformation
Dmitry E. Pelinovsky*, McMaster University
(11803515493) 
8:30 a.m.
Periodic focusing nonlinear Schrodinger equation: Spectral theory, coherent soliton condensates and elliptic finiteband solutions
Gino Biondini*, SUNY Buffalo
(11803515958) 
9:00 a.m.
Inverse Scattering Transform, solitons and soliton interactions for the complex coupled shortpulse equation
Barbara Prinari*, University at Buffalo
(11803515386) 
9:30 a.m.
Phase diagram and dynamics of dipolar BoseEinstein condensates in the presence of a rotating anisotropic magnetic field
Simeon Mistakidis*, Harvard and SmithsonianCenter for Astrophysics
(11808116011) 
10:00 a.m.
Global dynamics and blowup in some quadratic PDEs
Jonathan Jaquette*, Boston University
(11803515746)

8:00 a.m.

Saturday October 1, 2022, 8:00 a.m.11:00 a.m.
Special Session on Nonsmooth Analysis and Geometry I
141, Lederle Graduate Research Tower
Organizers:
Ryan Alvarado, Amherst College rjalvarado@amherst.edu
Armin Schikorra, University of Pittsburgh

8:00 a.m.
Uniqueness of entire solutions to $p$Laplace type equations with a subnatural growth term and measure data
Phuc Cong Nguyen*, Louisiana State University
Igor E Verbitsky, University of Missouri
(11803515773) 
8:30 a.m.
Geometric rigidity for nonlocal models motivated by nonlinear peridynamics and persistence in the localized limit
James M. Scott*, Columbia University
(11803516078) 
9:00 a.m.
Approximation of Strongly Convex Functions in $C^2_{\text {loc}}(\mathbb {R}^n)$
Daniel Azagra, Universidad Complutense de Madrid
Marjorie Drake*, University of Pittsburgh
Piotr Hajlasz, University of Pittsburgh
(11802616098) 
10:00 a.m.
BiLipschitz geometry of quasiconformal trees
Vyron Vellis*, University of Tennessee
(11803015996) 
10:30 a.m.
Rectifiable curves rarely look like two or more crossing line segments
Matthew Badger*, University of Connecticut
(11802815690)

8:00 a.m.

Saturday October 1, 2022, 8:00 a.m.11:00 a.m.
Special Session on Recent Advances in Causal Inference I
S231, Integrated Learning Center
Organizers:
Haben Michael, University of Massachusetts hmichael@math.umass.edu

8:00 a.m.
Sensitivity analysis of individual treatment effects: a robust conformal inference approach
Emmanuel Candes, Stanford University
Ying Jin, Stanford University
Zhimei Ren*, University of Chicago
(11806216016) 
9:00 a.m.
Generalized DifferenceinDifferences Models: Robust Bounds
Kyunghoon Ban, Iowa State University
Desire Kedagni*, UNCChapel Hill
(11806216033) 
10:00 a.m.
Optimal estimation of heterogeneous causal effects
Edward H. Kennedy*, Carnegie Mellon University
(11806216079)

8:00 a.m.

Saturday October 1, 2022, 8:00 a.m.11:00 a.m.
Special Session on Some Tantalizing Conjectures in Discrete Mathematics I
130, Hasbrouck
Organizers:
Annie Raymond, University of Massachusetts raymond@math.umass.edu
Laura Colmenarejo, NCSU
Nadia Lafrenière, Dartmouth College

8:00 a.m.
Understanding the plethystic decomposition of a power of homogeneous symmetric function in terms of tableaux
Florence MaasGariépy*, Université du Québec à Montréal (UQAM)
Étienne Tétreault, Université du Québec à Montréal
(11800515890) 
9:00 a.m.
A directed hypergraph Turántype problem
Dingding Dong, Harvard
Nitya Mani*, MIT
(11800515199) 
9:30 a.m.
A directed hypergraph Turántype theorem
Dingding Dong*, Harvard
(11800515229) 
10:00 a.m.
Flow polytopes as a unifying framework for some familiar combinatorial objects
Rafael S. González D'León*, Loyola University Chicago
(11805215758)

8:00 a.m.

Saturday October 1, 2022, 8:00 a.m.11:00 a.m.
Special Session on The Combinatorics and Geometry of Jordan type and Commuting Varieties I
126, Hasbrouck Annex
Organizers:
Peter Crooks, Northeastern University
A. Iarrobino, Northeastern University a.iarrobino@neu.edu
Iva Halacheva, Northeastern University
Leila Khatami, Union College

8:00 a.m.
Geometry and combinatorics of Springer fibers for certain Jordan types
Julianna Tymoczko*, Smith College
(11801416221) 
9:00 a.m.
Characteristic Cycles of cominuscule Schubert varieties are irreducible
Leonardo Mihalcea, Virginia Tech
Rahul Singh*, Independent
(11801416140) 
9:30 a.m.
Classifying Levispherical Schubert varieties
Reuven Hodges*, University of California San Diego
(11800515988) 
10:00 a.m.
Curve Neighborhoods of Schubert Varieties of the Odd Symplectic Grassmannian
Ryan M. Shifler*, Salisbury University
(11801414954) 
10:30 a.m.
Root of unity quantum cluster algebras and CayleyHamilton algebras
Shengnan Huang*, Northeastern University
Thang Tu Quoc Le, Georgia Institute of Technology
Milen Yakimov, Northeastern University
(11801614973)

8:00 a.m.

Saturday October 1, 2022, 8:00 a.m.11:00 a.m.
Special Session on Topics in PDEs and Harmonic Analysis I
123, Lederle Graduate Research Tower
Organizers:
Zongyuan Li, Rutgers University zongyuan.li@rutgers.edu
Weinan Wang, University of Arizona
Xueying Yu, University of Washington
Zhiyuan Zhang, New York University

8:00 a.m.
Multifractality in the evolution of vortex filaments
Daniel Eceizabarrena*, University of Massachusetts Amherst
(11807615147) 
8:30 a.m.
On the WellPosedness of the 2D Periodic Quadratic Derivative Nonlinear Wave Equation With Deterministic and Random Data
Dean Katsaros*, UMass Amherst
(11803516105) 
9:00 a.m.
Break 
9:30 a.m.
Almost sure global wellposedness for the fractional NLS
Mouhamadou Sy*, Johns Hopkins University
Xueying Yu, University of Washington
(11803516035) 
10:00 a.m.
On Uniqueness Properties of Solutions of the Generalized FourthOrder Schrodinger Equations
Zachary Lee*, MIT
Xueying Yu, University of Washington
(11803515475) 
10:30 a.m.
Existence of Rotating Stars with Variable Entropy
Yilun Wu*, University of Oklahoma
(11803516190)

8:00 a.m.

Saturday October 1, 2022, 8:00 a.m.11:00 a.m.
Special Session on Young Voices in Combinatorics I
113, Hasbrouck Annex
Organizers:
Laura Colmenarejo, NCSU
Jianping Pan, NCSU jpan9@ncsu.edu

8:00 a.m.
Minimal skewSSYT and the HillmanGrassl correspondence
Alejandro H Morales, University of Massachusetts, Amherst
Greta Panova, University of Southern California
Ga Yee Park*, UQAM
(11800516074) 
8:30 a.m.
Schubert Calculus and bosonic operators
Gleb Nenashev*, Brandeis University
(11800515962) 
9:00 a.m.
Cyclic Sieving Phenomenon on Fans of Dyck Paths
Joseph Pappe*, UC Davis
(11800516081) 
9:30 a.m.
TALK CANCELED Positivity for $q$hit numbers
Jeffrey Chen, University of Chicago Laboratory Schools
Jesse Selover*, UMass Amherst
(11800516216) 
10:00 a.m.
Equivariant Cohomology, Schubert Calculus, and Edge Labeled Tableaux
Colleen Robichaux*, University of California, Los Angeles
Harshit Yadav, Rice University
Alexander T Yong, University of Illinois at UrbanaChampaign
(11800516041) 
10:30 a.m.
A three regime theorem for flow firing
Sarah Brauner*, University of Minnesota  Twin Cities
Galen DorpalenBarry, RuhrUniversität Bochum
Selvi Kara, University of Utah
Caroline Klivans, Brown University
Lisa Schneider, Salisbury University
(11800516137)

8:00 a.m.

Saturday October 1, 2022, 8:30 a.m.11:00 a.m.
Special Session on Algebraic and Analytic Theory of Elliptic Curves, I
228, Hasbrouck
Organizers:
Steven Joel Miller, Williams College sjm1@williams.edu
Alina Cojocaru, University of Illinois, Chicago
Seoyung Kim, Grand Valley State University
Jesse A. Thorner, University of Florida

8:30 a.m.
Analytic methods in the study of elliptic curves
Siman Wong*, University of Massachusetts Amherst
(11801115929) 
9:00 a.m.
$\ell $adic images of Galois for elliptic curves over $\mathbb {Q}$
Jeremy A. Rouse*, Wake Forest University
Andrew V. Sutherland, Massachusetts Institute of Technology
David Michael ZureickBrown, Emory University
(11801115850) 
9:30 a.m.
Categorifying $L$functions
Jon Aycock, University of California, San Diego
Andrew Kobin*, Emory University
(11801115841) 
10:00 a.m.
On the vanishing of twisted $L$functions of elliptic curves over function fields
Chantal David*, Concordia University
(11801114871) 
10:30 a.m.
Arithmetic Statistics for Iwasawa Invariants of Elliptic Curves
Jeffrey Hatley*, Union College
(11801115776)

8:30 a.m.

Saturday October 1, 2022, 8:30 a.m.11:00 a.m.
Special Session on Combinatorial Algebraic Geometry I
109, Hasbrouck Annex
Organizers:
Madeline Brandt, Brown University madeline_brandt@brown.edu
Melody Chan, Brown University
Juliette Emmy Bruce, University of California, Berkeley

8:30 a.m.
Introductory Remarks 
9:00 a.m.
Interpolating between ordinary and bumpless pipe dreams
Allen Knutson*, Cornell University
Gabe Roland Udell, Cornell University
Paul ZinnJustin, University of Melbourne
(11800515762) 
10:00 a.m.
Regularity of powers of multigraded ideals
Juliette Emmy Bruce, University of California, Berkeley
Lauren Cranton Heller*, University of California  Berkeley
Mahrud Sayrafi, University of Minnesota, Twin Cities
(11801315893) 
10:30 a.m.
CastelnuovoMumford regularity of matrix Schubert varieties
Oliver Pechenik, University of Waterloo
David E Speyer, University of Michigan
Anna Weigandt*, Massachusetts Institute of Technology
(11800515602)

8:30 a.m.

Saturday October 1, 2022, 8:30 a.m.11:00 a.m.
Special Session on Higher Structures and Homotopical Algebra I
111, Hasbrouck Annex
Organizers:
John Berman, University of Massachusetts
Michael Ching, Amherst College
Iván Contreras, Amherst College
Owen Gwilliam, University of Massachusetts
Martina Rovelli, University of Massachusetts rovelli@math.umass.edu

8:30 a.m.
Framing Anomalies in TQFT
Chris Elliott*, Amherst College
(11808116095) 
9:00 a.m.
$\mathsf {FI}$ Calculus and Representation Stability
Kaya Ferendo*, Brown University
(118014887) 
9:30 a.m.
From properads to labelled cospan categories
Jonathan Beardsley, University of Nevada, Reno
Philip John Hackney*, University of Louisiana at Lafayette
(11801815902) 
10:00 a.m.
Simplicial coalgebras under three notions of weak equivalence
Manuel Rivera*, Purdue University
(11805515848)

8:30 a.m.

Saturday October 1, 2022, 8:30 a.m.11:00 a.m.
Special Session on Lagrangian and Legendrian Submanifolds, I
N211, Integrated Learning Center
Organizers:
Michael Garnett Sullivan, UmassAmherst sullivan@math.umass.edu
Dani AlvarezGavela, Massachusetts Institute of Technology

8:30 a.m.
Invariants of Legendrian 2Weaves
Kevin Sackel*, University of Massachusetts, Amherst
(11805316116) 
9:00 a.m.
A closing lemma for ellipsoids in any dimension.
Shira Tanny*, Institute for Advanced Study
(11805815836) 
9:30 a.m.
MorseBott methods and Floer homotopy theory
Laurent Cote*, Harvard University
Yusuf Baris Kartal, Princeton University
(11805315889) 
10:00 a.m.
Singularities of the quantum connection on a Fano variety
Daniel Pomerleano*, University of Massachusetts, Boston
(11805316064) 
10:30 a.m.
WDVVtype equations for real GromovWitten invariants
Xujia Chen*, Harvard University
(11805315673)

8:30 a.m.

Saturday October 1, 2022, 8:30 a.m.11:00 a.m.
Special Session on Latinx and Hispanics in Combinatorics, Number Theory, Geometry and Topology I
137, Hasbrouck
Organizers:
Alejandro H Morales, University of Massachusetts, Amherst ahmorales@math.umass.edu
Iván Contreras, Amherst College
Pamela Harris, Williams College
Geremias Polanco, Smith College

8:30 a.m.
The Transpose Rule of BHK Mirror Symmetry and Sasakian Geometry
Ralph Rudolph Gomez*, Swarthmore College
(11805315700) 
9:00 a.m.
Cubical setting for discrete homotopy theory
Daniel Carranza*, University of Toronto
Krzysztof R. Kapulkin, University of Western Ontario
(11800516111) 
9:30 a.m.
The Boundary Conjecture for Leaf Spaces
Karsten Grove, University of Notre Dame
Adam Moreno*, West Shore Community College
Peter Petersen, UCLA
(11805116188) 
10:00 a.m.
Aspects of Dynamical Mahler Measure
Matilde N. Lalin*, Université de Montréal
(11801115542) 
10:30 a.m.
Triangular modular curves
Juanita DuqueRosero*, Dartmouth College
(11801115821)

8:30 a.m.

Saturday October 1, 2022, 8:30 a.m.11:00 a.m.
Special Session on Math and Democracy: Perspectives in Research and Teaching I
S140, Integrated Learning Center
Organizers:
Andrew Schultz, Wellesley College aschult2@wellesley.edu
Ben BlumSmith, New York University and The New School
Stanley Chang, Wellesley College

8:30 a.m.
A sophomore level course in Mathematics, Voting, and Democracy
Thomas Ratliff*, Wheaton College
(11801015605) 
9:00 a.m.
Unfair and resilient districting plans
Wesley Hamilton*, University of Utah
(11806215753) 
9:30 a.m.
Math and democracy and community outreach
Katharine A. Ott*, Bates College
(11801015606) 
10:00 a.m.
MULTIDISTRICT PREFERENCE MODELLING
Geoffrey Pritchard, University of Auckland
Mark Curtis Wilson*, University of Massachusetts Amherst
(11809115589) 
10:30 a.m.
Ranked Choice Voting and the Spoiler Effect
Jennifer M. Wilson*, Eugene Lang College, The New School
(118014886)

8:30 a.m.

Saturday October 1, 2022, 8:30 a.m.11:00 a.m.
Special Session on Ramsey Theory, I
134, Hasbrouck
Organizers:
Louis DeBiasio, Miami University debiasld@miamioh.edu
Gábor Sárközy, Alfréd Rényi Institute of Mathematics

8:30 a.m.
Multicolor Turán and Ramseytype problems
Michael Tait*, Villanova University
(11800515629) 
9:00 a.m.
Tight Ramsey bounds for multiple copies of a graph
Matija Bucic*, Princeton University
(11800516091) 
9:30 a.m.
Steppingup constructions for multicolor hypergraph Ramsey numbers
Antonio Girao, University of Oxford
Eoin Hurley, University of Heidelberg
Dubroff Quentin*, Rutgers University
Corrine Yap, Rutgers University
(11800516143) 
10:00 a.m.
Large monochromatic components in expansive runiform hypergraphs
Deepak Bal*, Montclair State University
Louis DeBiasio, Miami University
(11800516165) 
10:30 a.m.
Ramsey's Theorem in the countable and the approximate ErdősHajnal property
Leonardo N. Coregliano*, Institute for Advanced Study
Maryanthe Malliaris, University of Chicago
(11800515943)

8:30 a.m.

Saturday October 1, 2022, 9:00 a.m.11:00 a.m.
Special Session on GameTheoretic and AgentBased Approaches to Modeling Biological and Social Systems
S131, Integrated Learning Center
Organizers:
Daniel Brendan Cooney, University of Pennsylvania dbcooney@sas.upenn.edu
Olivia Chu, Dartmouth College

9:00 a.m.
Community structure in hypergraphs and the emergence of polarization
Nicholas W. Landry*, University of Colorado Boulder
Juan G Restrepo, University of Colorado Boulder
(11809116139) 
9:30 a.m.
An Adaptive Voter Model in Heterogeneous Environments
Olivia Jessica Chu*, Dartmouth College
WaiTong Louis Fan, Indiana University
(11809116213) 
10:00 a.m.
A Dynamical Model of Integration
Marisa Eisenberg, University of Michigan School of Public Health
Joseph Davis Johnson*, University of Michigan
(11809115620) 
10:30 a.m.
Compartmental modeling to forecast the 2022 U.S. midterm elections
Alexandria Volkening*, Purdue University
(11809116005)

9:00 a.m.

Saturday October 1, 2022, 9:00 a.m.11:00 a.m.
Special Session on NonAbelian Hodge Theory and Minimal Surfaces, I
N255, Integrated Learning Center
Organizers:
Charles Ouyang, University of Massachusetts ouyang@math.umass.edu
Robert Kusner, University of Massachusetts
Franz Pedit, University of Massachusetts

9:00 a.m.
Projective structures, representations, and ODEs on surfaces
Lorenzo Ruffoni*, Tufts University
(11805716094) 
10:00 a.m.
Moduli space of minimal immersions in hyperbolic 3manifolds
Marcello Lucia*, City University of New York
(11803516030)

9:00 a.m.

Saturday October 1, 2022, 9:00 a.m.11:00 a.m.
Special Session on StructurePreserving Machine Learning I
145, Lederle Graduate Research Tower
Organizers:
Wei Zhu, University of Massachusetts zhu@math.umass.edu

9:00 a.m.
Structure preserving neural networks and applications to optimal control problems
Zhen Zhang*,
(11807015089) 
9:30 a.m.
Break 
10:00 a.m.
On the Activation Function Dependence of the Spectral Bias of Neural Networks
Qingguo Hong*, The Pennsylvania State University
(11806815879) 
10:30 a.m.
Measure Estimation in the Barycentric Coding Model: Geometry, Statistics, and Algorithms
James M. Murphy*, Tufts University
(11806215968)

9:00 a.m.

Saturday October 1, 2022, 11:00 a.m.11:50 a.m.
Invited Address
Organizers:
Steven H Weintraub, Lehigh University
Moduli spaces of graphs.
151, Integrated Learning Center
Melody Chan*, Brown University
(11801414634) 
Saturday October 1, 2022, 2:00 p.m.2:50 p.m.
Invited Address
Organizers:
Steven H Weintraub, Lehigh University
Why I love Monovariants: From Zombies and Conway's Soldiers to Fibonacci Games
151, Integrated Learning Center
Steven Joel Miller*, Williams College
(11801116134) 
Saturday October 1, 2022, 3:00 p.m.5:30 p.m.
Special Session on Algebraic and Analytic Theory of Elliptic Curves, II
228, Hasbrouck
Organizers:
Steven Joel Miller, Williams College sjm1@williams.edu
Alina Cojocaru, University of Illinois, Chicago
Seoyung Kim, Grand Valley State University
Jesse A. Thorner, University of Florida

3:00 p.m.
Bounds for the distribution of the Frobenius traces associated to products of nonCM elliptic curves
Tian Wang*, University of Illinois at Chicago
(11801115682) 
3:30 p.m.
On the adelic image of Galois representations attached to elliptic curves with CM
Alvaro LozanoRobledo*, University of Connecticut
Benjamin York, University of Connecticut
(11801115697) 
4:00 p.m.
Hall's conjecture and the ABC conjecture
Keith Conrad*, Univ. of Connecticut
(11801115973) 
4:30 p.m.
Compositelevel images of Galois representations
Catalina Camacho Navarro, Universidad de Costa Rica
Wanlin Li, Centre de Recherches Mathématiques
Jackson Morrow, UC Berkeley
Jack Petok*, Dartmouth College
David Michael ZureickBrown, Emory University
(11801116000) 
5:00 p.m.
Counting elliptic curves with a 7isogeny
Grant Molnar, Dartmouth College
John M. Voight*, Dartmouth
(11801115486)

3:00 p.m.

Saturday October 1, 2022, 3:00 p.m.6:00 p.m.
Special Session on Combinatorial Algebraic Geometry II
109, Hasbrouck Annex
Organizers:
Madeline Brandt, Brown University madeline_brandt@brown.edu
Melody Chan, Brown University
Juliette Emmy Bruce, University of California, Berkeley

3:00 p.m.
Putting the volume back in volume polynomials
Anastasia Nathanson, University of Minnesota
Lauren Nowak, University of Washington
Patrick Vincent O'Melveny, San Francisco State University
Dustin Ross*, San Francisco State University
(11801416004) 
4:00 p.m.
$K$rings of wonderful varieties and matroids
Matt Larson, Stanford University
Shiyue Li*, Brown University
Sam Payne, UT Austin
Nicholas Proudfoot, University of Oregon
(11801415597) 
4:30 p.m.
Blowup algebras of scrolls and their degenerations
Ritvik Ramkumar*, Cornell University
Alessio Sammartano, Politecnico di Milano
(11801316059) 
5:00 p.m.
Algebraic geometry of deltamatroids
Christopher Eur, Harvard University
Alex Fink, Queen Mary University London
Matt Larson*, Stanford University
Hunter Spink, Stanford University
(11801415552) 
5:30 p.m.
Matroid Valuations and Stressed Hyperplane Relaxations
George Nasr*, University of Oregon
(11800514905)

3:00 p.m.

Saturday October 1, 2022, 3:00 p.m.6:00 p.m.
Special Session on Connections Between Theoretical and Applied Dynamical Systems: A Session in Honor of the 60th Birthdays of Renato Feres and Boris Hasselblatt II
S211, Integrated Learning Center
Organizers:
Yao Li, University of Massachusetts yaoli@math.umass.edu
Timothy Chumley, Mount Holyoke College
Hongkun Zhang, University of Massachusetts

3:00 p.m.
Nonholonomic billiards and rolling flows
Renato Feres*, Washington University in St. Louis
(11803715880) 
3:30 p.m.
Measure of Maximal Entropy for Finite Horizon Sinai Billiard Flows
Viviane Baladi, CNRS Paris
Jerome Carrand, Sorbonne Universite
Mark Francis Demers*, Fairfield University
(11803715923) 
4:00 p.m.
Noslip Billiards with Particles of Variable Mass Distribution
Jan Ahmed, University of Delaware
Christopher L Cox*, Mount Holyoke College
(11803715645) 
4:30 p.m.
Mean Field Limits of ParticleBased Stochastic ReactionDiffusion Models
Konstantinos Spiliopoulos*, Boston University
(11806015406) 
5:00 p.m.
Invariant manifolds under delay perturbations
Jiaqi Yang*, Clarkson University
(11803915955) 
5:30 p.m.
Using numerical coupling method to detect dynamics
Yao Li*, University of Massachusetts
Shirou Wang, Jilin University
(11806015839)

3:00 p.m.

Saturday October 1, 2022, 3:00 p.m.6:00 p.m.
Special Session on GameTheoretic and AgentBased Approaches to Modeling Biological and Social Systems II
S131, Integrated Learning Center
Organizers:
Daniel Brendan Cooney, University of Pennsylvania dbcooney@sas.upenn.edu
Olivia Chu, Dartmouth College

3:00 p.m.
Oscillatory dynamics in the dilemma of social distancing
Feng Fu, Dartmouth College
Alina Glaubitz*, Dartmouth College
(11809115967) 
3:30 p.m.
The Emergence of Fairness in Iterated Population Games
Andrew Belmonte*, Dept of Mathematics, Pennsylvania State University
Christopher Griffin, Applied Research Laboratory, Pennsylvania State University
(11809116065) 
4:00 p.m.
The Intricate Geometry of ZeroDeterminant Strategies Steers Evolutionary Adaptation from Extortion to Generosity
Feng Fu*, Dartmouth College
(11809116142) 
4:30 p.m.
LongTime Behavior of a PDE Replicator Equation for Multilevel Selection in GroupStructured Populations
Daniel Brendan Cooney*, University of Pennsylvania
Yoichiro Mori, University of Pennsylvania
(11809215844)

3:00 p.m.

Saturday October 1, 2022, 3:00 p.m.5:30 p.m.
Special Session on Geometric Aspects of Algebraic Combinatorics II
124, Hasbrouck Annex
Organizers:
Theo Douvropoulos, University of Massachusetts douvropoulos@math.umass.edu
Edward Lowell Richmond, Oklahoma State University
Vasu Tewari, University of Hawaii

3:00 p.m.
Weight Polytopes of Demazure Modules
Joshua Kiers*, Marian University
(11800515931) 
3:30 p.m.
NewellLittlewood numbers
Shiliang Gao*, University of Illinois at UrbanaChampaign
Gidon Orelowitz, University of Illinois at UrbanaChampaign
Nicolas Ressayre, Institute Camille Jordan (ICJ), UMR CNRS 5208, Université Claude Bernard Lyon I
Alexander T Yong, University of Illinois at UrbanaChampaign
(11800515644) 
4:00 p.m.
The Kostka semigroup and its Hilbert basis
Shiliang Gao, University of Illinois at UrbanaChampaign
Joshua Kiers, The Ohio State University
Gidon Orelowitz*, University of Illinois at UrbanaChampaign
Alexander T Yong, University of Illinois at UrbanaChampaign
(11800515917) 
4:30 p.m.
A combinatorial Chevalley formula for semiinfinite flag manifolds and its applications
Cristian Lenart*, State University of New York at Albany
Satoshi Naito, Tokyo Institute of Technology, Japan
Daisuke Sagaki, Tsukuba University, Japan
(11800516036) 
5:00 p.m.
Bumpless Pipe Dream RSK, Growth Diagrams, and Schubert Structure Constants
Daoji Huang*, University of Minnesota
Pavlo Pylyavskyy, University of Minnesota
(11800515701)

3:00 p.m.

Saturday October 1, 2022, 3:00 p.m.6:00 p.m.
Special Session on Higher Structures and Homotopical Algebra II
111, Hasbrouck Annex
Organizers:
Martina Rovelli, University of Massachusetts rovelli@math.umass.edu
John Berman, University of Massachusetts
Michael Ching, Amherst College
Iván Contreras, Amherst College
Owen Gwilliam, University of Massachusetts

3:00 p.m.
Models for $(\infty ,n)$categories with discreteness conditions
Julie Bergner*, University of Virginia
(11805515581) 
3:30 p.m.
Generalized Goodwillie towers
Georg Biedermann*, Universidad del Norte, Barranquilla
(11805514916) 
4:00 p.m.
Some thought on sector forms in functor calculus
Thomas Goodwillie*, Brown University
(11801816039) 
4:30 p.m.
Smooth structures and embedding calculus
Benjamin Knudsen*, Northeastern University
(11805515101) 
5:00 p.m.
Semiright induced model structures on internal categories
Lyne Moser, Max Planck Institute for Mathematics
Maru Sarazola*, Johns Hopkins University
Paula Verdugo, Macquarie University
(11801815949) 
5:30 p.m.
Norms and Transfers in Motivic Homotopy Theory
Brian Shin*, University of California, Los Angeles
(11805516040)

3:00 p.m.

Saturday October 1, 2022, 3:00 p.m.5:30 p.m.
Special Session on Iwasawa Theory I
230, Hasbrouck
Organizers:
Tom Weston, University of Massachusetts tweston@umass.edu
Robert Pollack, Boston University
Anwesh Ray, University of British Columbia

3:00 p.m.
On Mazur's main conjecture at Eisenstein primes
Francesc Castella*, University of California Santa Barbara
(11801115763) 
3:30 p.m.
Irreducibility of limits of Galois representations
Krzysztof Klosin*, CUNY
(11801115816) 
4:00 p.m.
$\lambda $invariant stability in families of modular Galois representations
Jeffrey Hatley*, Union College
(11801115781) 
4:30 p.m.
Higher congruences and patched bipartite Euler systems in anticyclotomic Iwasawa theory
Naomi Sweeting*, Harvard
(11801116096) 
5:00 p.m.
On a conjecture of Goldfeld
Ashay Burungale*, Caltech
(11801116097)

3:00 p.m.

Saturday October 1, 2022, 3:00 p.m.6:00 p.m.
Special Session on Lagrangian and Legendrian Submanifolds, II
N211, Integrated Learning Center
Organizers:
Michael Garnett Sullivan, UmassAmherst sullivan@math.umass.edu
Dani AlvarezGavela, Massachusetts Institute of Technology

3:00 p.m.
Nearby Lagrangians, fixed points, and flux
Marcelo S. Atallah, Universite de Montreal
Egor Shelukhin*, Universite de Montreal
(11805315921) 
3:30 p.m.
Microlocal sheaves of spectra and symplectic applications
Xin Jin*, Boston College
(11805315756) 
4:00 p.m.
Symplectomorphisms mirror to birational transformations of $\mathbb {P}^2$
Abigail Ward*, Massachusetts Institute of Technology
(11805316147) 
4:30 p.m.
Functorial mirror symmetry for very affine hypersurfaces
Benjamin Gammage, Harvard University
Maxim Jeffs*, Harvard University
(11805315439) 
5:00 p.m.
Localization and flexibilization in Legendrian knot theory
Oleg Lazarev*, University of Massachusetts Boston
Zachary Sylvan, Columbia University
Hiro Lee Tanaka, Texas State University
(11805715971) 
5:30 p.m.
Existence of Minimal Lagrangians in K3 Surfaces
YuShen Lin*, Boston University
(11805315555)

3:00 p.m.

Saturday October 1, 2022, 3:00 p.m.6:00 p.m.
Special Session on Machine Learning Methods for PDEs I
143, Lederle Graduate Research Tower
Organizers:
Yulong Lu, University of Massachusetts Amherst lu@math.umass.edu
Wuzhe Xu, University of Massachusetts Amherst

3:00 p.m.
A Neural Network Approach for Homogenization of Multiscale Problems
Jihun Han, Dartmouth College
Yoonsang Lee*, Dartmouth College
(11806515579) 
4:00 p.m.
Learning Nonlocal (Integral) Operators for Heterogeneous Material Modeling
Yue Yu*, Lehigh University
(11804515584) 
5:00 p.m.
Greedy Training Algorithms for Neural Networks and Applications to PDEs
Qingguo Hong*, The Pennsylvania State University
(11806515877)

3:00 p.m.

Saturday October 1, 2022, 3:00 p.m.5:30 p.m.
Special Session on Math and Democracy: Perspectives in Research and Teaching II
S140, Integrated Learning Center
Organizers:
Andrew Schultz, Wellesley College aschult2@wellesley.edu
Ben BlumSmith, New York University and The New School
Stanley Chang, Wellesley College

3:00 p.m.
Is There a Better Way to Elect a President?
Steven J Brams*, New York University
(11809115835) 
4:00 p.m.
Theory, Spreadsheets, and Maps: A FirstYear Seminar Course on the Mathematics of Voting
Beth Campbell Hetrick*, Gettysburg College
(11801015867) 
4:30 p.m.
Simplicial complexes and political structures
Ismar Volic*, Wellesley College
(11809115617) 
5:00 p.m.
There and Back Again: Taking Mathematical Politics From the Classroom to the Community and Back
Lauren L. Rose, Bard College
Jeff Suzuki*, BrooklynCollege
(11801015870)

3:00 p.m.

Saturday October 1, 2022, 3:00 p.m.5:00 p.m.
Special Session on NonAbelian Hodge Theory and Minimal Surfaces, II
N255, Integrated Learning Center
Organizers:
Charles Ouyang, University of Massachusetts ouyang@math.umass.edu
Robert Kusner, University of Massachusetts
Franz Pedit, University of Massachusetts

3:00 p.m.
Recent and ongoing work on minimal doublings and related topics
Nicolaos Kapouleas*, Brown University
(11805315922) 
4:00 p.m.
New existence and nonuniqueness results for free boundary minimal surfaces in the 3ball
Alessandro Carlotto, ETH Zurich
Mario Schulz, Universitaet Muenster
David Wiygul*, ETH Zurich
(11805315972) 
5:00 p.m.
Asymptotics of surface group representations along rays
John Loftin, Rutgers University at Newark
Huiping Pan, South China University of Technology
Andrea Tamburelli, University of Pisa
Michael Wolf*, Georgia Institute of Technology
(11805316218)

3:00 p.m.

Saturday October 1, 2022, 3:00 p.m.6:00 p.m.
Special Session on Nonsmooth Analysis and Geometry II
141, Lederle Graduate Research Tower
Organizers:
Ryan Alvarado, Amherst College rjalvarado@amherst.edu
Armin Schikorra, University of Pittsburgh

3:00 p.m.
NonEmbeddability of Carnot Groups into $L^1$
Lisa Naples*, Macalester College
(11805115961) 
3:30 p.m.
Heat Besov spaces and bounded variation functions on metric measure Dirichlet spaces
Patricia Alonso Ruiz, Texas A&M University
Fabrice Baudoin, University of Connecticut
Li Chen, Louisiana State University
Luke G Rogers*, University of Connecticut
Nageswari Shanmugalingam, University of Cincinnati
Alexander Teplyaev, University of Connecticut
(11802616219) 
4:00 p.m.
New results for commutators of CalderonZygmund operators
Kabe Albert Moen*, University of Alabama
(11804215713) 
4:30 p.m.
Differentiation of Lipschitz mappings into metric spaces
Behnam Esmayli, University of Pittsburgh
Piotr Hajlasz, University of Pittsburgh
Scott Zimmerman*, The Ohio State University At Marion
(11803015224) 
5:00 p.m.
Variational Solutions to the $\infty $Poisson equation with respect to Hörmander vector fields
Luca Capogna*, Smith College
(11803515970)

3:00 p.m.

Saturday October 1, 2022, 3:00 p.m.5:30 p.m.
Special Session on Ramsey Theory, II
134, Hasbrouck
Organizers:
Louis DeBiasio, Miami University debiasld@miamioh.edu
Gábor Sárközy, Alfréd Rényi Institute of Mathematics

3:00 p.m.
Pseudorandom Ramsey Graphs
Jacques Verstraete*, University of California San Diego
(11800516061) 
3:30 p.m.
The ErdősGyárfás problem and color energy graphs
József Balogh, University of Illinois UrbanaChampaign
Sean English, University of North Carolina Wilmington
Emily Heath, Iowa State University
Robert A. Krueger*, University of Illinois at UrbanaChampaign
(11800516082) 
4:00 p.m.
The ErdősGyárfás function $f(n, 4, 5) = \frac 56 n + o(n)$  so Gyárfás was right
Patrick Bennett*, Western Michigan University
Ryan Cushman, Toronto Metropolitan University
Andrzej Dudek, Western Michigan University
Pawel Pralat, Toronto Metropolitan University
(11800516002) 
4:30 p.m.
On Ramsey Multiplicity Questions
Dan Kral, Masaryk University
Jan Volec, Czech Technical University
Fan Wei*, Princeton University
(11800515978) 
5:00 p.m.
Patterns in ordered (random) matchings
Andrzej Dudek*, Western Michigan University
(11800515888)

3:00 p.m.

Saturday October 1, 2022, 3:00 p.m.6:00 p.m.
Special Session on Recent Advances in Causal Inference II
S231, Integrated Learning Center
Organizers:
Haben Michael, University of Massachusetts hmichael@math.umass.edu

3:00 p.m.
Causal organic indirect and direct effects: closer to Baron and Kenny, and enabling estimation of indirect effects without ontreatment outcome data
Ronald J Bosch, Center for Biostatistics in AIDS research, Harvard TH Chan School of Public Health
Judith Jacqueline Lok*, Boston University Dept. of Mathematics and Statistics
(11806215842) 
4:00 p.m.
Balancing weights in factorial observational studies
Peng Ding, University of California, Berkeley
Ruoqi Yu*, University of California, Davis
(11806215985) 
5:00 p.m.
Nonparametric causal inference with a continuous exposure
Kenta Takatsu, Carnegie Mellon University
Ted Westling*, Department of Mathematics and Statistics, University of Massachusetts Amherst
(11806215578)

3:00 p.m.

Saturday October 1, 2022, 3:00 p.m.6:00 p.m.
Special Session on Some Tantalizing Conjectures in Discrete Mathematics II
130, Hasbrouck
Organizers:
Annie Raymond, University of Massachusetts raymond@math.umass.edu
Laura Colmenarejo, NCSU
Nadia Lafrenière, Dartmouth College

3:00 p.m.
Limit Profiles of Reversible Markov chains
Evita Nestoridi*, Stony Brook University
(11806016175) 
4:00 p.m.
Hessenberg varieties and the StanleyStembridge conjecture
Martha Precup*, Washington University In St. Louis
(11800515873) 
5:00 p.m.
Problem Session

3:00 p.m.

Saturday October 1, 2022, 3:00 p.m.5:30 p.m.
Special Session on Structurepreserving machine learning II
145, Lederle Graduate Research Tower
Organizers:
Wei Zhu, University of Massachusetts zhu@math.umass.edu

3:00 p.m.
Discovering object landmarks via equivariant and invariant representation learning
Subhransu Maji*, College of Information and Computer Sciences, University of Massachusetts, Amherst
(11806816090) 
3:30 p.m.
Structurepreserving GANs
Wei Zhu*, University of Massachusetts Amherst
(11806515657) 
4:00 p.m.
Implicit Bias of Linear Equivariant Networks
Andrew Dienes, MIT
Kristian Georgiev, MIT
Bobak Kiani, MIT
Hannah Lawrence*, MIT
(11806815886) 
4:30 p.m.
Learning Manifoldstructured Data using Deep networks: Theory and Algorithms
Rongjie Lai*, Rensselaer Polytechnic Institute
(11806816170) 
5:00 p.m.
Conformal Autoencoders: A Network Architecture for Disentanglement
George A Kevrekidis*, Johns Hopkins University
(11805816063)

3:00 p.m.

Saturday October 1, 2022, 3:00 p.m.6:00 p.m.
Special Session on The Combinatorics and Geometry of Jordan type and Commuting Varieties II
126, Hasbrouck Annex
Organizers:
A Iarrobino, Northeastern University a.iarrobino@neu.edu
Peter Crooks, Northeastern University
Iva Halacheva, Northeastern University
Leila Khatami, Union College

3:00 p.m.
The quantum HarishChandra homorphism for $GL_n$
Joshua Jeishing Wen*, Northeastern University
(11808115980) 
3:30 p.m.
$U_q(\mathfrak {gl}(1 \vert 1))$ and $U(1 \vert 1)$ ChernSimons theory
Nathan Geer, Utah State University
Matthew B. Young*, Utah State University
(11801715898) 
4:00 p.m.
A Gröbner basis for KazhdanLusztig ideals in the flag variety of affine type A
Balazs Elek, Cornell University
Daoji Huang*, University of Minnesota
(11801415847) 
4:30 p.m.
Artinian Gorenstein algebras of embedding dimension 4 and socle degree 3
Pedro Macias Marques, University Evora
Oana Veliche*, Northeastern University
Jerzy Weyman, University of Connecticut, Storrs, USA
(11801315648) 
5:00 p.m.
Finite group actions on free resolutions
Federico Galetto*, Cleveland State University
(11801315683) 
5:30 p.m.
Principal Radical Systems, Lefschetz Properties, and Perfection of TwoRowed Specht Ideals
Chris McDaniel*, Endicott College
(11801316069)

3:00 p.m.

Saturday October 1, 2022, 3:00 p.m.6:00 p.m.
Special Session on Topics in PDEs and Harmonic Analysis II
123, Lederle Graduate Research Tower
Organizers:
Zongyuan Li, Rutgers University zongyuan.li@rutgers.edu
Weinan Wang, University of Arizona
Xueying Yu, University of Washington
Zhiyuan Zhang, New York University

3:00 p.m.
Global solutions of quasigeostrophic shallow water front problems
Qingtian Zhang*, West Virginia University
(11803515438) 
3:30 p.m.
Dynamics of multisoliton solutions to KleinGordon equations
Gong Chen*, Georgia Institute of Technology
(11803515752) 
4:00 p.m.
Break 
4:30 p.m.
Existence and stability of traveling wave solutions to the Muskat problem
Huy Quang Nguyen*, University of Maryland  College Park
Ian Tice, Carnegie Mellon University
(11803516048) 
5:00 p.m.
Multiplicity results for classes of reaction diffusion systems.
Ananta Acharya, University of North Carolina at Greensboro
Gampola Waduge Nalin Fonseka*, Carolina University
Ratnasingham Shivaji, University of North Carolina Greensboro
(11803515703)

3:00 p.m.

Saturday October 1, 2022, 3:15 p.m.4:30 p.m.
Contributed Paper Session on AMS Contributed Paper Session
113, Hasbrouck Annex
Organizers:
Steven H Weintraub, Lehigh University shw2@lehigh.edu

3:15 p.m.
Ehrhart Theory of Panhandle & Paving Matroids
Derek Hanely, University of Kentucky
Jeremy L. Martin, University of Kansas
Daniel A McGinnis, Iowa State University
Dane Miyata, University of Oregon
George Nasr, University of Oregon
Andrés R. Vindas Meléndez*, UC Berkeley
Mei Yin, University of Denver
(11800515440) 
3:30 p.m.
A Mathematical Model for Biological Field Effect Transistors
Arvind Balijepalli, NIST
Ryan Murray Evans*, National Institute of Standards and Technology
Anthony Kearsley, National Institute of Standards and Technology
(11803516107) 
3:45 p.m.
Smallest Reflexible Covers of Prisms over Polytopes
Gabe Cunningham, University of Massachussetts Boston
Mark Mixer*, Wentworth Institute of Technology
Gordon Ian Williams, University of Alaska Fairbanks
(11805215452)

3:15 p.m.

Saturday October 1, 2022, 3:30 p.m.5:30 p.m.
Special Session on Latinx and Hispanics in Combinatorics, Number Theory, Geometry and Topology II
137, Hasbrouck
Organizers:
Alejandro H Morales, University of Massachusetts, Amherst ahmorales@math.umass.edu
Iván Contreras, Amherst College
Pamela Harris, Williams College
Geremias Polanco, Smith College

3:30 p.m.
The Primitive Eulerian polynomial of type A, B, and D
Jose Bastidas*, Université du Québec à Montréal
Christophe Hohlweg, Université du Québec à Montréal
Franco Saliola, Université du Québec à Montréal
(11800516013) 
4:00 p.m.
An Algebraic Characterization of the Shifted Plactic Monoid
Santiago Estupiñán*, University of Waterloo
Oliver Pechenik, University of Waterloo
(11800516085) 
4:30 p.m.
Homotopical combinatorics
Angelica M. Osorno*, Reed College
(11805515993) 
5:00 p.m.
$c$functions and Macdonald polynomials
Laura Colmenarejo*, NCSU
Arun Ram, University of Melbourne
(11800515845)

3:30 p.m.

Saturday October 1, 2022, 3:30 p.m.6:00 p.m.
Special Session on Nonlinear Waves and Applications: A Celebration of Dimitri Frantzeskakis 60th Birthday, II
121, Lederle Graduate Research Tower
Organizers:
Panos Kevrekidis, University of Massachusetts kevrekid@umass.edu
Ricardo Carretero, San Diego State University

3:30 p.m.
Acoustic solitons in a periodic waveguide: theory and experiments
Vassos Achilleos*, Laboratoire d'Acoustique de l'Universite ́ du Mans (LAUM), UMR 6613
(11803516089) 
4:00 p.m.
Floquet Topological Insulators in a Photonic Lattice
Justin Cole*, University of Colorado, Colorado Springs
(11807815456) 
4:30 p.m.
Recent advances on Rogue waves in continuous and discrete models
Efstathios G. Charalampidis*, California Polytechnic State University San Luis Obispo
(11803416020) 
5:00 p.m.
Dark Structures on a Torus for the Nonlinear Schrödinger Model
Ricardo Carretero, San Diego State University
Jennie D'Ambroise*, SUNY Old Westbury
Panos Kevrekidis, University of Massachusetts
Peter Schmelcher, University of Hamburg, Germany
(11803515352) 
5:30 p.m.
Ground States in the Discrete Nonlinear Schrödinger Equation
Ryan Michael Ross*, UMass Amherst
(11803516106)

3:30 p.m.

Saturday October 1, 2022, 5:45 p.m.6:45 p.m.
Reception Hosted by the Department of Mathematics
Lobby, Integrated Learning Center
Organizers:
Department of Mathematics, University of Massachusetts  Amherst
Inquiries: meet@ams.org