AMS :: Spring Western Sectional Meeting, AMS Special Session

AMS Sectional Meeting AMS Special Session

Current as of Saturday, April 25, 2015 03:30:11

Associate secretaries:

Saturday April 18, 2015, 8:30 a.m.-10:50 a.m.
Special Session on Algebraic and Enumerative Combinatorics, I
CBC C120, Classroom Building Complex - Building C
Organizers:
Drew Armstrong, University of Miami
Brendon Rhoades, University of California, San Diego bprhoades@math.ucsd.edu
- 8:30 a.m.
  Parking functions with undesirable spaces.
  James Haglund, University of Pennsylvania
  Jeffrey B. Remmel, UC San Diego
  Andrew T. Wilson*, UC San Diego
  (1110-05-82)
- 9:00 a.m.
  Vector bundles associated to realizable matroids.
  Andrew Berget*, Western Washington University
  (1110-05-349)
- 9:30 a.m.
  Two formulas for the dinv statistic.
  Mikhail Mazin*, Kansas State University
  Eugene Gorsky, Columbia University, UC Davis
  (1110-05-273)
- 10:00 a.m.
  Affine permutations and rational slope parking functions.
  E. Gorsky, Columbia University
  M. Mazin, Kansas State University
  M. Vazirani*, UC Davis
  (1110-05-257)
- 10:30 a.m.
  Parking functions, Shi arrangements, and mixed graphs.
  Matthias Beck*, San Francisco State University
  Ana Berrizbeitia, University of Iowa
  Michael Dairyko, Iowa State University
  Claudia Rodriguez, Arizona State University
  Amanda Ruiz, University of San Diego
  Schuyler Veeneman, McLean, VA
  (1110-05-51)

Saturday April 18, 2015, 3:00 p.m.-5:50 p.m.
Special Session on Algebraic and Enumerative Combinatorics, II
CBC C120, Classroom Building Complex - Building C
Organizers:
Drew Armstrong, University of Miami
Brendon Rhoades, University of California, San Diego bprhoades@math.ucsd.edu
- 3:00 p.m.
  Bijections and symmetries for factorizations of the long cycle.
  Olivier Bernardi, Brandeis University
  Alejandro H. Morales*, UCLA
  (1110-05-376)
- 3:30 p.m.
  Computing generating functions for the number of descents in permutations avoiding a family of permutations that start with 1.
  Quang T. Bach*, University of California, San Diego
  Jeffrey B. Remmel, University of California, San Diego
  (1110-05-242)
- 4:00 p.m.
  Macdonald's reduced word identity.
  Benjamin J Young*, University of Oregon
  (1110-05-399)
- 4:30 p.m.
  Discussion.
- 5:00 p.m.
  Ehrhart positivity for generalized permutohedra.
  Fu Liu*, University of California, Davis
  Federico Castillo, University of California, Davis
  (1110-05-50)
- 5:30 p.m.
  Why the Fuss?
  Christian Stump, Freie Universität Berlin
  Hugh R. Thomas, University of New Brunswick
  Nathan F. Williams*, LaCIM, UQAM
  (1110-05-77)

Sunday April 19, 2015, 8:30 a.m.-10:50 a.m.
Special Session on Algebraic and Enumerative Combinatorics, III
CBC C120, Classroom Building Complex - Building C
Organizers:
Drew Armstrong, University of Miami
Brendon Rhoades, University of California, San Diego bprhoades@math.ucsd.edu
- 8:30 a.m.
  Enumeration of lozenge tilings of a hexagon with hole on boundary.
  Tri Lai*, Institute for Mathematics and it Applications
  (1110-05-32)
- 9:00 a.m.
  New approaches to conjectures on decompositions of simplicial complexes.
  Art M. Duval, University of Texas, El Paso
  Bennet Goeckner, University of Kansas
  Caroline J. Klivans, Brown University
  Jeremy L. Martin*, University of Kansas
  (1110-05-160)
- 9:30 a.m.
  Generating the Frobenius Characteristic of the Diagonal Harmonics (Several Ways).
  Angela Hicks*, Stanford University
  (1110-05-374)
- 10:00 a.m.
  Multi-cores, posets, and lattice paths.
  Tewodros Amdeberhan, Tulane University
  Emily Leven*, UC San Diego
  (1110-05-60)
- 10:30 a.m.
  Some new interpretations for the $q,t$-Schröder polynomial.
  J. Haglund*, University of Pennsylvania
  (1110-05-217)

Sunday April 19, 2015, 3:00 p.m.-5:20 p.m.
Special Session on Algebraic and Enumerative Combinatorics, IV
CBC C120, Classroom Building Complex - Building C
Organizers:
Drew Armstrong, University of Miami
Brendon Rhoades, University of California, San Diego bprhoades@math.ucsd.edu
- 3:00 p.m.
  A Murnaghan-Nakayama Rule for Quasisymmetric Schur Functions.
  Janine LoBue Tiefenbruck*, University of California, San Diego
  Jeffrey B. Remmel, University of California, San Diego
  (1110-05-317)
- 3:30 p.m.
  A right Pieri rule for noncommutative Schur functions.
  Vasu Tewari*, UNIVERSITY OF BRITISH COLUMBIA
  (1110-05-110)
- 4:00 p.m.
  Unitary representations and abacus combinatorics.
  Susanna Fishel*, Arizona State University
  Stephen Griffeth, University of Talca
  (1110-05-347)
- 4:30 p.m.
  Supercharacters and the combinatorics of GGG representations.
  Scott Andrews, Dartmouth
  Nathaniel Thiem*, University of Colorado Boulder
  (1110-05-199)
- 5:00 p.m.
  Balanced parabolic quotients and branching rules for Demazure crystals.
  John M Dusel*, University of California, Riverside
  (1110-05-115)