AMS :: Spring Western Sectional Meeting, Program by Day

AMS Sectional Meeting Program by Day

Current as of Friday, December 14, 2018 03:30:06

Inquiries: meet@ams.org

Spring Western Sectional Meeting

Portland State University, Portland, OR
April 14-15, 2018 (Saturday - Sunday)
Meeting #1137

Associate secretaries:

Michel L Lapidus, AMS lapidus@math.ucr.edu, lapidus@mathserv.ucr.edu

Sunday April 15, 2018

Sunday April 15, 2018, 8:00 a.m.-12:00 p.m.
Meeting Registration
L101, Lecture Hall Lobby, Hoffman Hall

Sunday April 15, 2018, 8:00 a.m.-12:00 p.m.
Exhibit and Book Sale
L101, Lecture Hall Lobby, Hoffman Hall

Sunday April 15, 2018, 8:00 a.m.-10:40 a.m.
Special Session on Algebraic Geometry and its Connections, III
Room 158, Cramer Hall
Organizers:
Sándor Kovács, University of Washington, Seattle
Karl Schwede, University of Utah, Salt Lake City schwede@math.utah.edu
- 8:00 a.m.
  Moduli spaces of stable pairs, uniformity of integral points and positivity of the log cotangent bundle.
  Amos Turchet*, University of Washington
  Kenny Ascher, MIT
  Kristin DeVleming, University of Washington
  (1137-14-256)
- 9:00 a.m.
  Moduli of Hypersurfaces in $\mathbb{P}^3$.
  Kristin DeVleming*, University of Washington
  (1137-14-232)
- 10:00 a.m.
  Compactifying the moduli space of degree one del Pezzo surfaces via elliptic fibrations.
  Kenneth Ascher*, Massachusetts Institute of Technology
  Dori Bejleri, Brown University
  (1137-14-220)

Sunday April 15, 2018, 8:00 a.m.-10:40 a.m.
Special Session on Algebraic Topology, III
Room 250, Cramer Hall
Organizers:
Angélica Osorno, Reed College aosorno@reed.edu
Dev Sinha, University of Oregon
- 8:00 a.m.
  Steinberg summands and symmetric powers of the equivariant sphere spectrum.
  Krishanu Roy Sankar*, University of British Columbia
  (1137-55-294)
- 9:00 a.m.
  Functional Summaries of Persistence Diagrams.
  Brittany Terese Fasy*, Montana State University
  (1137-55-344)
- 10:00 a.m.
  Free $\mathbb{Z}/p\times\mathbb{Z}/p$ actions on $S^n\times S^n$.
  Courtney M Thatcher*, University of Puget Sound
  Jim Fowler, The Ohio State University
  (1137-55-301)

Sunday April 15, 2018, 8:00 a.m.-10:50 a.m.
Special Session on Automorphisms of Riemann Surfaces and Related Topics, III
Room 283, Cramer Hall
Organizers:
S. Allen Broughton, Rose-Hulman Institute of Technology
Mariela Carvacho, Universidad Tecnica Federico Santa Maria
Anthony Weaver, Bronx Community College, the City University of New York
Aaron Wootton, University of Portland wootton@up.edu
- 8:00 a.m.
  Discussion
- 8:30 a.m.
  Metabelian Galois Representations.
  Edray Herber Goins*, Purdue University
  Rachel Davis, University of Wisconsin at Madison
  (1137-11-340)
- 9:00 a.m.
  Minimal Models for Superellipic Riemann Surfaces with Extra Automorphism.
  Lubjana Beshaj*, United States Military Academy
  (1137-14-149)
- 9:30 a.m.
  Comparing the deck group and Veech group of an origami.
  Rachel Davis*, University of Wisconsin-Madison
  (1137-20-124)
- 10:00 a.m.
  Structure of $\widetilde{\mathcal{M}_{4}}$.
  Mariela Carvacho*, Universidad Técnica Federico Santa María
  Víctor González-Aguilera, Universidad Técnica Federico Santa María
  (1137-20-312)
- 10:30 a.m.
  Automorphism groups and splittability.
  Emma Previato*, Boston University
  (1137-14-338)

Sunday April 15, 2018, 8:00 a.m.-10:50 a.m.
Special Session on Biomathematics - Progress and Future Directions, III
Room 269, Cramer Hall
Organizers:
Hannah Callender Highlander, University of Portland
Peter Hinow, University of Wisconsin - Milwaukee hinow@uwm.edu
Deena Schmidt, University of Nevada, Reno
- 8:00 a.m.
  Prediction, Data Assimilation, and Uncertainty Quantification in Cancer Dynamics.
  Eric J Kostelich*, Arizona State University
  (1137-92-205)
- 8:30 a.m.
  A Mathematical Model of the Metastatic Cascade with Application to Breast Cancer Recurrence.
  Leonid Hanin*, Idaho State University
  (1137-92-39)
- 9:00 a.m.
  Biosimulator: a user-friendly Julia package for stochastic simulation in systems biology.
  Alfonso Landeros, University of California, Los Angeles
  Alexander Alekseyenko, Medical University of South Carolina
  Kevin Keys, University of California, San Francisco
  Kenneth Lange, University of California, Los Angeles
  Mary E. Sehl*, University of California, Los Angeles
  (1137-92-138)
- 9:30 a.m.
  Coupled experimental and computational study of the interplay of mechanical properties and chemical signaling in patterns of stem cell division and differentiation in plants.
  Mikahl Banwarth-Kuhn, University of California Riverside
  Ali Nematbakhsh, University of California Riverside
  Weitao Chen, University of California Riverside
  Stephen Snipes, University of California Riverside
  Andrew Whitaker, University of California Riverside
  Venugopala Gonehal, University of California Riverside
  Mark Alber*, University of California Riverside
  (1137-92-105)
- 10:00 a.m.
  Modeling pattern formation mechanisms in the vertebrate limb: What can we learn from tetrapod evolution?
  Tilmann Glimm*, Western Washington University
  (1137-92-153)
- 10:30 a.m.
  Model of Stress Propagation in Fibrin Network.
  Samuel Britton*, University of California Riverside
  Oleg Kim, University of California Riverside
  Zhiliang Xu, University of Notre Dame
  Rustem Litvinov, University of Pennsylvania School of Medicine
  John Weisel, University of Pennsylvania School of Medicine
  Mark Alber, University of California Riverside
  (1137-74-288)

Sunday April 15, 2018, 8:00 a.m.-10:50 a.m.
Special Session on Commutative Algebra, III
Room 171, Cramer Hall
Organizers:
Adam Boocher, University of Utah
Irena Swanson, Reed College iswanson@reed.edu
- 8:00 a.m.
  Discussion
- 8:30 a.m.
  Depth bounds for monomial ideals.
  Louiza Fouli*, New Mexico State University
  Tài Hà, Tulane University
  Susan Morey, Texas State University
  (1137-13-322)
- 9:00 a.m.
  Realization spaces for matroids.
  Madeline V Brandt*, University of California Berkeley
  (1137-13-163)
- 9:30 a.m.
  The slack ideal of a polytope.
  João Gouveia, Universidade de Coimbra
  Antonio Macchia, Università degli Studi di Bari
  Rekha R Thomas, University of Washington
  Amy Wiebe*, University of Washington
  (1137-05-264)
- 10:00 a.m.
  Complete intersections with given Hilbert polynomials.
  Christopher Eur*, UC Berkeley
  Sung Hyun Lim, Pohang University of Science and Technology
  (1137-13-199)
- 10:30 a.m.
  Cohen-Macaulayness of Initial Ideals of Normal Toric Ideals.
  Serkan Hosten*, San Francisco State University
  (1137-13-320)

Sunday April 15, 2018, 8:00 a.m.-10:40 a.m.
Special Session on Differential Geometry, III
Room 321, Cramer Hall
Organizers:
Christine Escher, Oregon State University tine@science.oregonstate.edu
Catherine Searle, Wichita State University
- 8:00 a.m.
  The singular free boundary in the thin obstacle problem.
  Nicola Garofalo, University of Padova
  Arshak Petrosyan, Purdue University
  Mariana Smit Vega Garcia*, University of Washington
  (1137-53-47)
- 9:00 a.m.
  Exterior Bernstein and Bernstein problems for Hessian equations.
  Yu Yuan*, University of Washington
  (1137-53-200)
- 10:00 a.m.
  Extending a diffeomorphism finiteness theorem to dimension 4.
  Curtis Pro*, California State University, Stanislaus
  Fred Wilhelm, UC, Riverside
  (1137-53-65)

Sunday April 15, 2018, 8:00 a.m.-10:50 a.m.
Special Session on Geometric Measure Theory and Partial Differential Equations, III
Room 271, Cramer Hall
Organizers:
Mark Allen, Brigham Young University
Spencer Becker-Kahn, University of Washington
Mariana Smit Vega Garcia, University of Washington marianag@uw.edu
- 8:00 a.m.
  Global Classical Solutions to the 3D Quasi-Geostrophic System.
  Matthew Novack*, University of Texas-Austin
  Alexis Vasseur, University of Texas-Austin
  (1137-35-269)
- 8:30 a.m.
  Regularity for Shape Optimizers: The Degenerate Case.
  Dennis Kriventsov*, Courant Institute, NYU
  (1137-35-270)
- 9:00 a.m.
  The Cheeger constant of a Jordan domain without necks.
  Robin Neumayer*, Northwestern University
  (1137-49-52)
- 9:30 a.m.
  Regularity results for a Two-Penalty Boundary Obstacle Problem.
  Thomas Backing, Purdue University
  Donatella Danielli, Purdue University
  Rohit Jain*, McGill University
  (1137-35-309)
- 10:00 a.m.
  Characterization of isoperimetric sets inside almost-convex cones.
  Eric Baer*, University of Wisconsin, Madison
  Alessio Figalli, ETH Zurich
  (1137-49-249)
- 10:30 a.m.
  From the free boundary condition for Hele-Shaw to the fractional parabolic equation.
  Hector A. Chang-Lara*, Centro de Investigacion en Matematicas
  Nestor Guillen, University of Massachusetts
  (1137-35-324)

Sunday April 15, 2018, 8:00 a.m.-10:50 a.m.
Special Session on Inverse Problems, III
Rom 371, Cramer Hall
Organizers:
Hanna Makaruk, Los Alamos National Laboratory (LANL)
Robert Owczarek, University of New Mexico, Albuquerque & Los Alamos rowczare@unm.edu
- 8:00 a.m.
  Universal Growth in Production Economies.
  Simina Branzei*, Purdue University
  Ruta Mehta, University of Illinois at Urbana-Champaign
  Noam Nisan, Hebrew University of Jerusalem
  (1137-91-80)
- 8:30 a.m.
  Not so fast: Exploration of masking in human psychophysics performance.
  Michael Isaiah Ham*, Los Alamos National Laboratory
  (1137-92-78)
- 9:00 a.m.
  A Diophantine approach to causal lifting factorization of discrete wavelet transforms.
  Christopher M. Brislawn*, Santa Fe, New Mexico
  (1137-42-240)
- 9:30 a.m.
  Application of Koopman Operators for Data Assimilation.
  Humberto C Godinez*, Los Alamos National Laboratory
  (1137-62-323)
- 10:00 a.m.
  Inferring fusion temperature and ion velocity distributions using gamma flux, recent progress.
  James R Langenbrunner*, Los Alamos National Laboratory
  Jane M Booker, Los Alamos National Laboratory
  Hanna E Makaruk, Los Alamos National Laboratory
  (1137-80-355)
- 10:30 a.m.
  Discussion

Sunday April 15, 2018, 8:00 a.m.-10:50 a.m.
Special Session on Mock Modular and Quantum Modular Forms, III
Room 150, Cramer Hall
Organizers:
Holly Swisher, Oregon State University swisherh@math.oregonstate.edu
Stephanie Treneer, Western Washington University
- 8:00 a.m.
  Recent Results on the Riemann Hypotheses.
  Ken Ono*, Emory University
  (1137-11-5)
- 9:00 a.m.
  Congruences for mock modular forms and the smallest parts function.
  Scott Ahlgren*, University of Illinois
  (1137-11-171)
- 10:00 a.m.
  The modular parameterization of elliptic curves.
  Michael J Griffin*, BYU
  Jonathan Hales, BYU
  (1137-11-273)
- 10:30 a.m.
  Quantum modular forms and singular combinatorial series.
  Min-Joo Jang*, Cologne University
  Amanda Folsom, Amherst College
  Susie Kimport, Stanford University
  Holly Swisher, Oregon State University
  (1137-11-308)

Sunday April 15, 2018, 8:00 a.m.-10:50 a.m.
Special Session on Modeling, Analysis, and Simulation of PDEs with Multiple Scales, Interfaces, and Coupled Phenomena, II
Room 383, Cramer Hall
Organizers:
Yekaterina Epshteyn, University of Utah
Malgorzata Peszynska, Oregon State University mpesz@math.oregonstate.edu
- 8:00 a.m.
  Displacement Constraints in Biot Systems.
  Ralph Showalter*, Oregon State University
  Alireza Hosseinkhan, Oregon State University
  (1137-35-118)
- 8:30 a.m.
  On a Reaction-Diffusion System Modeling the Tumor Treatment.
  Hong-Ming Yin*, Washington State University
  (1137-35-28)
- 9:00 a.m.
  The Difference Potentials Method for interface problems and models with moving geometry.
  Yekaterina Epshteyn, University of Utah
  Gunilla Kreiss, Uppsala University
  Gustav Ludvigsson, Uppsala University
  Kyle R. Steffen*, University of Utah
  Simon Sticko, Uppsala University
  Siyang Wang, Chalmers University of Technology
  Qing Xia, University of Utah
  (1137-65-228)
- 9:30 a.m.
  Analysis and numerical analysis of a coupled system for biofilm growth.
  Azhar Saeed Alhammali*, Oregon State University
  Malgorzata Peszynska, Oregon State University
  (1137-65-58)
- 10:00 a.m.
  Proving Uniqueness of Solutions for Burgers Equation Entropic for a Single Entropy, with Eye Towards Systems Case.
  Sam G. Krupa*, The University of Texas at Austin
  Alexis F. Vasseur, The University of Texas at Austin
  (1137-35-159)
- 10:30 a.m.
  Phase field model for mixtures: convexity and regularity.
  Malgorzata Peszynska*, Oregon State University
  (1137-65-27)

Sunday April 15, 2018, 8:00 a.m.-10:40 a.m.
Special Session on Moduli Spaces, III
Room 382, Cramer Hall
Organizers:
Renzo Cavalieri, Colorado State University
Damiano Fulghesu, Minnesota State University Moorhead fulghesu@mnstate.edu
- 8:00 a.m.
  Moduli spaces of linear series and nodal curves.
  Brian Osserman*, University of California Davis
  (1137-14-155)
- 9:00 a.m.
  $r$-Spin Hurwitz and Stable Maps with Divisible Ramification.
  Oliver Leigh*, University of Melbourne/University of British Columbia
  (1137-14-238)
- 10:00 a.m.
  Rigidity and Extremality of Hyperelliptic Classes in Genus Two.
  Vance T. Blankers*, Colorado State University
  (1137-14-335)

Sunday April 15, 2018, 8:00 a.m.-10:50 a.m.
Special Session on Noncommutative Algebraic Geometry and Related Topics, III
Room 71, Cramer Hall
Organizers:
Jesse Levitt, University of Southern California
Hans Nordstrom, University of Portland nordstro@up.edu
Xinting Wang, Temple University
- 8:00 a.m.
  Isomorphisms of graded path algebras.
  Jason Gaddis*, Miami University
  (1137-16-40)
- 8:30 a.m.
  Zariski cancellation problem for rings.
  Oswaldo Lezama*, Universidad Nacional de Colombia
  Y.-H Wang, Shanghai University of Finance and Economics
  J.J Zhang, University of Washington
  (1137-16-72)
- 9:00 a.m.
  Subprime solutions of the classical Yang-Baxter equation.
  Garrett Johnson*, North Carolina Central University
  (1137-17-7)
- 9:30 a.m.
  Quantum Group and Cluster Algebras.
  Bach Nguyen*, Louisiana State University
  (1137-16-76)
- 10:00 a.m.
  Irreducible representations of the 4-dimensional Sklyanin algebra at points of finite order.
  Chelsea Walton, University of Illinois Urbana-Champaign
  Xingting Wang*, Temple University
  Milen Yakimov, Louisiana State University
  (1137-16-14)
- 10:30 a.m.
  Auslander's Theorem for group coactions on noetherian graded down-up algebras.
  Ellen E. Kirkman*, Wake Forest University
  Jianmin Chen, Xiamen University
  James J. Zhang, University of Washington, Seattle
  (1137-16-211)

Sunday April 15, 2018, 8:00 a.m.-10:50 a.m.
Special Session on Nonsmooth Optimization and Applications(Dedicated to Prof. B. S. Mordukhovich on the occasion of his 70th birthday), III
Room 53, Cramer Hall
Organizers:
Mau Nam Nguyen, Portland State University mnn3@pdx.edu
Hung M. Phan, University of Massachusetts Lowell
Shawn Xianfu Wang, University of British Columbia
- 8:00 a.m.
  Foundations of gauge and perspective duality.
  James V Burke*, Seattle, Washington
  Aleksandr Aravkin, University of Washington
  Dmitriy Drusvyatskiy, University of Washington
  Michael P Friedlender, University of British Columbia
  Kellie MacPhee, University of Washington
  (1137-90-208)
- 8:30 a.m.
  A linear-time algorithm to check the convexity of piecewise linear-quadratic functions.
  Yves Lucet*, University of British Columbia
  Heinz H Bauschke, University of British Columbia
  Hung M Phan, University of Massachusetts Lowell
  (1137-49-315)
- 9:00 a.m.
  Spectral Subgradient Method for Unconstrained Optimization.
  Milagros Loreto*, University of Washington Bothell
  Yiting Xu, University of Washington Bothell
  David Kotval, Middle Tennessee State University
  (1137-49-217)
- 9:30 a.m.
  On the sum of projectors onto convex sets.
  Heinz H. Bauschke, Mathematics, University of British Columbia, Kelowna, B.C. V1V 1V7, Canada
  Minh N. Bui*, Mathematics, University of British Columbia, Kelowna, B.C. V1V 1V7, Canada
  Xianfu Wang, Mathematics, University of British Columbia, Kelowna, B.C. V1V 1V7, Canada
  (1137-47-310)
- 10:00 a.m.
  On the generic nature of various classes of convex functions.
  Jon D Vanderwerff*, La Sierra University
  (1137-46-318)
- 10:30 a.m.
  Constrained clustering and multifacility location via distance function penalty methods and DC programming.
  Mau Nam Nguyen, Portland State University
  Sam Reynolds, Portland State University
  Tuyen Tran*, Portland State University
  (1137-49-187)

Sunday April 15, 2018, 8:00 a.m.-10:20 a.m.
Special Session on Spectral Theory, III
Room 325, Cramer Hall
Organizers:
Jake Fillman, Virginia Tech fillman@vt.edu
Milivoje Lukic, Rice University
- 8:00 a.m.
  A bound for the eigenvalue counting function for higher-order Krein Laplacians on arbitrary open sets.
  Selim Sukhtaiev*, Rice University
  (1137-35-59)
- 8:30 a.m.
  Sharp spectral transition for eigenvalues embedded into essential spectrum of Laplacian on Riemannian manifold or Schrödinger operator.
  Svetlana Jitomirskaya, UC Irvine
  Wencai Liu*, UC Irvine
  Darren Ong, Xiamen University Malaysia
  (1137-37-109)
- 9:00 a.m.
  Localization and delocalization for two interacting 1D quasiperiodic particles.
  Jean Bourgain, Institute for Advanced Study, Princeton
  Svetlana Jitomirskaya, University of California, Irvine
  Ilya Kachkovskiy*, Michigan State University
  (1137-47-103)
- 9:30 a.m.
  Cantor spectrum of graphene in magnetic fields.
  Simon Becker, University of Cambridge
  Rui Han*, Institute for Advanced Study
  Svetlana Jitomirskaya, University of California, Irvine
  (1137-47-175)
- 10:00 a.m.
  Large deviation estimates in spectral analysis of ergodic Schrödinger operators.
  Zhenghe Zhang*, UC Riverside
  (1137-37-184)

Sunday April 15, 2018, 8:00 a.m.-10:50 a.m.
Special Session on Wavelets, Frames, and Related Expansions, III
Room 401, Cramer Hall
Organizers:
Marcin Bownik, University of Oregon mbownik@uoregon.edu
Darrin Speegle, Saint Louis University
- 8:00 a.m.
  Optimal packings of subspaces with mixed dimension.
  John Haas*, University of Missouri
  Peter G. Casazza, University of Missouri
  Tin Tran, University of Missouri
  Joshua Stueck, University of Missouri
  (1137-41-113)
- 8:30 a.m.
  Equiangular tight frames from association schemes.
  Joseph W Iverson, University of Maryland
  John Jasper*, South Dakota State University
  Dustin G Mixon, The Ohio State University
  (1137-43-119)
- 9:00 a.m.
  Construction of low coherence unit norm tight frames.
  Somantika Datta*, University of Idaho
  Jesse Oldroyd, West Virginia Wesleyan College
  (1137-41-35)
- 9:30 a.m.
  Constructing Tight Gabor Frames Using CAZAC Sequences.
  Mark Magsino*, University of Maryland
  (1137-42-31)
- 10:00 a.m.
  Equiangular tight frames from group divisible designs.
  Matthew Fickus*, Air Force Institute of Technology
  (1137-42-33)
- 10:30 a.m.
  Towards a unified theory of equiangular tight frames.
  Dustin G. Mixon*, The Ohio State University
  (1137-42-104)

Sunday April 15, 2018, 8:30 a.m.-10:40 a.m.
Special Session on Teaching and Learning in Undergraduate Mathematics, III
Room 247, Science Research and Teaching Center (SRTC)
Organizers:
Natalie LF Hobson, Sonoma State University natalie.hobson@sonoma.edu
Elise Lockwood, Oregon State University
- 8:30 a.m.
  Leveraging Computing to Teach Mathematical Content: The Case of Programming and Productive Combinatorial Thinking.
  Elise Lockwood*, Oregon State University
  (1137-97-48)
- 9:00 a.m.
  Using the Emergent Models Heuristic to Describe and Support a Preliminary Local Instructional Theory for the Guided Reinvention of the Classification of Chemically Important Point Groups.
  Anna Marie Bergman*, Portland State University
  Timothy French, DePaul University
  (1137-97-212)
- 10:00 a.m.
  One Mean Problem on Intermediate Values.
  John S Caughman*, Portland State University
  (1137-97-352)

Sunday April 15, 2018, 9:00 a.m.-10:50 a.m.
Special Session on Algebraic and Combinatorial Structures in Knot Theory, III
Room 183, Cramer Hall
Organizers:
Allison Henrich, Seattle University
Inga Johnson, Willamette University
Sam Nelson, Claremont McKenna College Sam.Nelson@cmc.edu
- 9:00 a.m.
  Trace Diagram and Biquandle Brackets.
  Natsumi Oyamaguchi*, Shumei University
  (1137-55-139)
- 9:30 a.m.
  Link invariants obtained from augmented Alexander matrices.
  Kanako Oshiro*, Sophia University
  Atsushi Ishii, University of Tsukuba
  (1137-57-295)
- 10:00 a.m.
  Ribbon Obstructions and Colored Tri-Plane Diagrams.
  Patricia Cahn*, Smith College
  Alexandra Kjuchukova, University of Wisconsin-Madison
  (1137-57-297)
- 10:30 a.m.
  Khovanov Homology for Knotoids.
  Louis H Kauffman*, University of Illinois at Chicago
  (1137-57-56)

Sunday April 15, 2018, 9:00 a.m.-10:40 a.m.
Special Session on Motivic homotopy theory, III
Room 258, Cramer Hall
Organizers:
Daniel Dugger, University of Oregon
Kyle Ormsby, Reed College ormsbyk@reed.edu
- 9:00 a.m.
  A search for an algebraic equivalence analogue of motivic theories.
  Eric M Friedlander*, University of Southern California
  (1137-14-360)
- 10:00 a.m.
  Suslin's Conjecture and the motivic homotopy of GLn.
  T Benedict Williams*, University of British Columbia
  (1137-19-342)

Sunday April 15, 2018, 11:10 a.m.-12:00 p.m.
Invited Address
A (co)homology theory for subfactors and planar algebras.
Room 109, Hoffman Hall
Dimitri Shlyakhtenko*, UCLA
(1137-46-242)

Sunday April 15, 2018, 2:00 p.m.-4:40 p.m.
Special Session on Algebraic Topology, IV
Room 250, Cramer Hall
Organizers:
Angélica Osorno, Reed College aosorno@reed.edu
Dev Sinha, University of Oregon
- 2:00 p.m.
  The Linearization Conjecture.
  Agnes Beaudry*, University of Colorado Boulder
  (1137-55-111)
- 3:00 p.m.
  Geometry of cyclotomic trace.
  David Ayala*, Montana State University
  Aaron Mazel-Gee, University of Southern California
  Nick Rozenblyum, University of Chicago
  (1137-55-126)
- 4:00 p.m.
  Interactions between $(\mathbb{Z}/p)^n$-actions and commutative algebra.
  Jeremiah Heller, University of Illinois at Urbana-Champaign
  Marc Stephan*, University of British Columbia
  (1137-55-289)

Sunday April 15, 2018, 2:00 p.m.-3:50 p.m.
Special Session on Biomathematics - Progress and Future Directions, IV
Room 269, Cramer Hall
Organizers:
Hannah Callender Highlander, University of Portland
Peter Hinow, University of Wisconsin - Milwaukee hinow@uwm.edu
Deena Schmidt, University of Nevada, Reno
- 2:00 p.m.
  Stochastic Dynamic Transitions for Stochastic Evolution Equations.
  Mickaël D. Chekroun*, UCLA
  (1137-37-356)
- 2:30 p.m.
  Incorporating data assimilation methods in a simple model for influenza.
  Hannah R Biegel*, University of Arizona
  Joceline Lega, University of Arizona
  (1137-92-134)
- 3:00 p.m.
  Data-driven multiscale mathematical models of signaling in the maintenance of transcription factor distribution in stem cell homeostasis.
  Weitao Chen*, University of California, Riverside
  (1137-92-122)
- 3:30 p.m.
  Emergence of Cooperativity in Microbial Consortia.
  Diana Schepens*, Montana State University
  Ross Carlson, Montana State University
  Jeff Heys, Montana State University
  Ashley Beck, Montana State University
  Tomas Gedeon, Montana State University
  (1137-92-112)

Sunday April 15, 2018, 2:00 p.m.-4:40 p.m.
Special Session on Differential Geometry, IV
Room 321, Cramer Hall
Organizers:
Christine Escher, Oregon State University tine@science.oregonstate.edu
Catherine Searle, Wichita State University
- 2:00 p.m.
  The topology of moduli spaces of planar pentagons with singularities.
  Stephen Krughoff*, Oregon State University
  (1137-53-156)
- 2:30 p.m.
  Discrete conformal geometry of polyhedral surfaces.
  Ren Guo*, Oregon State University
  (1137-53-227)
- 3:00 p.m.
  Can we detect the geometry and topology of an orbisurface from its Steklov spectrum?
  Teresa Arias-Marco, University of Extremadura
  Emily Dryden, Bucknell University
  Carolyn Gordon, Dartmouth College
  Asma Hassannezhad, University of Bristol
  Allie Ray, Trinity College
  Elizabeth Stanhope*, Lewis & Clark College
  (1137-58-194)
- 4:00 p.m.
  Action dimensions of some simple complexes of groups.
  Giang Le*, Oregon State University
  (1137-57-237)

Sunday April 15, 2018, 2:00 p.m.-4:20 p.m.
Special Session on Geometric Measure Theory and Partial Differential Equations, IV
Room 271, Cramer Hall
Organizers:
Mark Allen, Brigham Young University
Spencer Becker-Kahn, University of Washington
Mariana Smit Vega Garcia, University of Washington marianag@uw.edu
- 2:00 p.m.
  Convexity of level lines of Martin functions and some applications.
  Koushik Ramachandran*, Oklahoma State Univeristy
  (1137-35-64)
- 2:30 p.m.
  Least action principles with applications to gradient flows and kinetic equations.
  Javier A Morales Delgado*, University of Maryland College Park, CSCAMM
  (1137-49-317)
- 3:00 p.m.
  Elliptic measures and geometric properties of the domains.
  Zihui Zhao*, University of Washington
  (1137-28-61)
- 3:30 p.m.
  A Tale of Two Approaches.
  S. Ries McCurdy*, University of Washington, Seattle
  (1137-35-284)
- 4:00 p.m.
  Stochastic Homogenization for Reaction-Diffusion Equations.
  Jessica Lin*, McGill University
  Andrej Zlatos, University of California--San Diego
  (1137-35-178)

Sunday April 15, 2018, 2:00 p.m.-4:50 p.m.
Special Session on Inverse Problems, IV
Rom 371, Cramer Hall
Organizers:
Hanna Makaruk, Los Alamos National Laboratory (LANL)
Robert Owczarek, University of New Mexico, Albuquerque & Los Alamos rowczare@unm.edu
- 2:00 p.m.
  General Relativity, Constraints Theory and Non-Commutative Worlds.
  Louis H Kauffman*, University of Illinois at Chicago
  (1137-83-55)
- 3:00 p.m.
  Median Shapes: existence, regularity and computation.
  Yunfeng Hu, Washington State University-Pullman
  Matthew Hudelson, Washington State University-Pullman
  Bala Krishnamoorthy, Washington State Univesity-Vancouver
  Altansuren Tumurbaatar, Washington State University-Pullman
  Kevin R. Vixie*, Washington State University-Pullman
  (1137-49-50)
- 3:30 p.m.
  A Lower Bound for the Reach of a Flat-Norm Minimizer.
  Enrique G Alvarado*, Washington State University
  Kevin R Vixie, Washington State University
  (1137-49-329)
- 4:00 p.m.
  Bayesian Analysis and Nonlocal Means Method on Tumor Detection.
  Yunfeng Hu*, Washington State University
  Enrique Alvarado, Washington State University
  Kevin Vixie, Washington State University
  Yufeng Cao, Washington State University
  Yuan Wang, Washington State University
  Michael Newsham, Washington State University
  Laramie Paxton, Washington State University
  (1137-49-327)
- 4:30 p.m.
  A New Model for Liver Segmentation Using Min-cut/Max-flow Algorithms.
  Laramie Paxton*, Washington State University
  Yufeng Cao, Washington State University
  (1137-92-146)

Sunday April 15, 2018, 2:00 p.m.-4:40 p.m.
Special Session on Moduli Spaces, IV
Room 382, Cramer Hall
Organizers:
Renzo Cavalieri, Colorado State University
Damiano Fulghesu, Minnesota State University Moorhead fulghesu@mnstate.edu
- 2:00 p.m.
  The Brauer group of the moduli stack of vector bundles on smooth curves (joint w/ R. Fringuelli).
  Roberto Fringuelli, University of Edinburgh
  Roberto Pirisi*, University of British Columbia
  (1137-14-158)
- 3:00 p.m.
  Moduli spaces of sheaves on a K3 surface and Galois representations.
  Sarah Frei*, University of Oregon
  (1137-14-181)
- 4:00 p.m.
  Universal Series for Hilbert Schemes and Strange Duality.
  Drew Johnson*, University of Oregon, Eugene
  (1137-14-131)

Sunday April 15, 2018, 2:00 p.m.-4:50 p.m.
Special Session on Noncommutative Algebraic Geometry and Related Topics, IV
Room 71, Cramer Hall
Organizers:
Jesse Levitt, University of Southern California
Hans Nordstrom, University of Portland nordstro@up.edu
Xinting Wang, Temple University
- 2:00 p.m.
  Center of Taft Algebra Smash Products.
  Jason Gaddis, Miami University
  Robert Won, Wake Forest University
  Daniel Yee*, Bradley University
  (1137-16-102)
- 2:30 p.m.
  A representation theoretic study of noncommutative symmetric algebras.
  Daniel Chan, University of New South Wales
  Adam Nyman*, Western Washington University
  (1137-14-13)
- 3:00 p.m.
  Frobenius-Perron Theory of Modified ADE Quiver Algebras.
  Elizabeth Wicks*, University of Washington, Seattle, WA
  (1137-16-16)
- 3:30 p.m.
  The enriched Grothendieck construction.
  Jonathan Beardsley, University of Washington, Seattle
  Liang Ze Wong*, University of Washington, Seattle
  (1137-18-79)
- 4:00 p.m.
  Co-nilpotent Connected Hopf Algebra Actions.
  Jesse S. F. Levitt*, University of Southern California
  Iris Buschelman, University of Southern California
  (1137-16-348)
- 4:30 p.m.
  The Koszul property for graded twisted tensor products.
  Peter D. Goetz*, Humboldt State University
  (1137-16-328)

Sunday April 15, 2018, 2:00 p.m.-4:50 p.m.
Special Session on Nonsmooth Optimization and Applications(Dedicated to Prof. B. S. Mordukhovich on the occasion of his 70th birthday), IV
Room 53, Cramer Hall
Organizers:
Mau Nam Nguyen, Portland State University mnn3@pdx.edu
Hung M. Phan, University of Massachusetts Lowell
Shawn Xianfu Wang, University of British Columbia
- 2:00 p.m.
  A Semismooth Inverse Mapping Theorem for ${\cal C}^{1+}$ Functions under Tilt Stability.
  Ebrahim Sarabi*, Miami University
  (1137-49-343)
- 2:30 p.m.
  Linear convergence of iterative soft thresholding and solution uniqueness to general Lasso in Hilbert spaces.
  Nghia T. A. Tran, Oakland University, Rochester, MI
  Ming Yan, Michigan State University
  Trinh Tran*, Oakland University, Rochester, MI
  (1137-90-170)
- 3:00 p.m.
  On directional pseudo/quasi-normality and directional enhanced KKT conditions.
  Kuang Bai*, University of Victoria
  (1137-49-253)
- 3:30 p.m.
  A nonsmooth program for jamming hard spheres.
  Peter Hinow*, University of Wisconsin - Milwaukee
  (1137-49-18)
- 4:00 p.m.
  An Efficient Algorithm for Finding a 3-Dim Maximum Independent Set.
  Michael A Laidacker*, Lamar University, Beaumont, Tx
  (1137-05-8)
- 4:30 p.m.
  On Mordukhovich's Criteria for Lipschitz Properties of Nonsmooth Functions and Set-Valued Mappings.
  Mau Nam Nguyen*, Portland State University
  (1137-49-286)

Sunday April 15, 2018, 2:00 p.m.-4:20 p.m.
Special Session on Wavelets, Frames, and Related Expansions, IV
Room 401, Cramer Hall
Organizers:
Marcin Bownik, University of Oregon mbownik@uoregon.edu
Darrin Speegle, Saint Louis University
- 2:00 p.m.
  Quasi-tight Framelets and Matrix Spectral Factorization.
  Bin Han*, University of Alberta
  Chenzhe Diao, University of Alberta
  (1137-41-73)
- 2:30 p.m.
  Fuglede-Gabor problem over non-separable time-frequency lattices.
  Chun-Kit Lai*, San Francisco State University
  Azita Mayeli, Graduate Center, City University of New York
  (1137-42-68)
- 3:00 p.m.
  Grassmannian Frames and Minimizers of the $p$-Frame Potentials.
  Kasso A. Okoudjou, University of Maryland, College Park
  Shujie Kang*, University of Maryland, College Park
  (1137-42-259)
- 3:30 p.m.
  Frames arising from solvable actions.
  Vignon Sourou Oussa*, Bridgewater State University
  (1137-43-51)
- 4:00 p.m.
  Frames from continuous actions of an operator.
  Akram Aldroubi, Vanderbilt University
  Longxiu Huang, Vanderbilt University
  Armenak Petrosyan*, Vanderbilt University
  (1137-46-127)

Sunday April 15, 2018, 3:00 p.m.-3:50 p.m.
Special Session on Automorphisms of Riemann Surfaces and Related Topics, IV
Room 283, Cramer Hall
Organizers:
S. Allen Broughton, Rose-Hulman Institute of Technology
Mariela Carvacho, Universidad Tecnica Federico Santa Maria
Anthony Weaver, Bronx Community College, the City University of New York
Aaron Wootton, University of Portland wootton@up.edu
- 3:00 p.m.
  Discussion
- 3:30 p.m.
  Discussion

Inquiries: meet@ams.org