Spring Eastern Sectional Meeting (formerly at Brown University)

• now meeting virtually, EDT (hosted by the American Mathematical Society), Virtual, RI
• March 20-21, 2021 (Saturday - Sunday)
• Meeting #1165

Steven H Weintraub, AMS shw2@lehigh.edu

AMS 2021 Spring Sectional Meetings will be held VIRTUALLY on the originally planned dates. Further details will be posted as soon as they are available. Send questions to meet@ams.org.

• Saturday March 20, 2021, 9:00 a.m.-10:00 a.m.
  Special Session on Recent Advances in Schubert Calculus and Related Topics, I
  Special Session 2, AMS
  Organizers:
  Cristian Lenart, State University of New York at Albany
  Changlong Zhong, State University of New York at Albany czhong@albany.edu
  

  • 9:00 a.m.
    Hessenberg Schubert polynomials.
    Julianna Tymoczko*, Smith College
    (1165-05-306)
  • 9:30 a.m.
    Positivity of Schubert Calculus.
    Rebecca Goldin*, George Mason University
    Leonardo Mihalcea, Virginia Tech
    Rahul Singh, Virginia Tech
    (1165-14-132)
• Saturday March 20, 2021, 11:00 a.m.-1:00 p.m.
  Special Session on Recent Advances in Schubert Calculus and Related Topics, II
  Special Session 2, AMS
  Organizers:
  Cristian Lenart, State University of New York at Albany
  Changlong Zhong, State University of New York at Albany czhong@albany.edu
  

  • 11:00 a.m.
    A Pieri rule for the quantum K-theory of maximal orthogonal Grassmannians.
    Anders Buch*, Rutgers University
    Pierre-Emmanuel Chaput, Universite de Lorraine
    Leonardo Mihalcea, Virginia Tech
    Nicolas Perrin, Universite Paris-Saclay
    (1165-14-286)
  • 11:30 a.m.
    Positivity of Segre-MacPherson classes.
    Paolo Aluffi, Florida State University
    Leonardo C Mihalcea*, Virginia Tech
    Jorg Schurmann, Munster University, Germany
    Changjian Su, University of Toronto
    (1165-14-164)
  • 12:00 p.m.
    Whittaker functions from motivic Chern classes.
    Changjian Su*, University of Toronto
    Leonardo C. Mihalcea, Virginia Tech University
    (1165-22-134)
  • 12:30 p.m.
    Bow varieties.
    Richard Rimanyi*, UNC Chapel Hill
    Yiyan Shou, UNC Chapel Hill
    (1165-14-145)
• Saturday March 20, 2021, 3:00 p.m.-6:00 p.m.
  Special Session on Recent Advances in Schubert Calculus and Related Topics, III
  Special Session 2, AMS
  Organizers:
  Cristian Lenart, State University of New York at Albany
  Changlong Zhong, State University of New York at Albany czhong@albany.edu
  

  • 3:00 p.m.
    Degeneracy Loci and Schubert Polynomials.
    William Fulton*, University of Michigan
    (1165-14-148)
  • 3:30 p.m.
    Puzzles compute the Euler characteristic of the intersection of Bruhat cells.
    Allen Knutson*, Cornell University
    Paul Zinn-Justin, University of Melbourne
    (1165-14-208)
  • 4:00 p.m.
    Positroid varieties and q,t-Catalan numbers.
    Pavel Galashin, UCLA
    Thomas Lam*, U. Michigan
    (1165-05-120)
  • 4:30 p.m.
    Equivariant cohomology, Schubert calculus, and Edge labeled tableaux.
    Colleen Robichaux*, University of Illinois at Urbana-Champaign
    Harshit Yadav, Rice University
    Alexander Yong, University of Illinois at Urbana-Champaign
    (1165-05-52)
  • 5:00 p.m.
    Discussion.
• Sunday March 21, 2021, 9:00 a.m.-10:00 a.m.
  Special Session on Recent Advances in Schubert Calculus and Related Topics, IV
  Special Session 2, AMS
  Organizers:
  Cristian Lenart, State University of New York at Albany
  Changlong Zhong, State University of New York at Albany czhong@albany.edu
  

  • 9:00 a.m.
    On equivariant oriented cohomology of Bott-Samelson varieties.
    Hao Li*, SUNY at Albany
    Changlong Zhong, SUNY at Albany
    (1165-14-12)
  • 9:30 a.m.
    Localized operations on T-equivariant oriented cohomology of projective homogeneous varieties.
    Kirill Zainoulline*, University of Ottawa
    (1165-14-75)
• Sunday March 21, 2021, 11:00 a.m.-2:00 p.m.
  Special Session on Recent Advances in Schubert Calculus and Related Topics, V
  Special Session 2, AMS
  Organizers:
  Cristian Lenart, State University of New York at Albany
  Changlong Zhong, State University of New York at Albany czhong@albany.edu
  

  • 11:00 a.m.
    Quasi-split symmetric pairs of type A and Steinberg varieties of classical type.
    Yiqiang Li*, SUNY at Buffalo
    (1165-17-109)
  • 11:30 a.m.
    Equivariant coherent sheaves on a point and Kazhdan-Lusztig bases.
    J. Matthew Douglass*, National Science Foundation
    (1165-20-49)
  • 12:00 p.m.
    Indecomposability and tangent spaces to Schubert varieties.
    William Graham*, University of Georgia
    Victor Kreiman, University of Wisconsin - Parkside
    (1165-14-290)
  • 12:30 p.m.
    Equivariant $K$-theory of the semi-infinite flag manifold as a nil-DAHA module.
    Daniel Orr*, Virginia Tech
    (1165-20-135)
  • 1:00 p.m.
    Discussion.
• Sunday March 21, 2021, 3:00 p.m.-4:30 p.m.
  Special Session on Recent Advances in Schubert Calculus and Related Topics, VI
  Special Session 2, AMS
  Organizers:
  Cristian Lenart, State University of New York at Albany
  Changlong Zhong, State University of New York at Albany czhong@albany.edu
  

  • 3:00 p.m.
    Derivatives of Schubert polynomials and proof of a determinant conjecture of Stanley.
    Zachary Hamaker, University of Florida
    Oliver Pechenik, University of Waterloo
    David E Speyer, University of Michigan
    Anna Weigandt*, University of Michigan
    (1165-05-234)
  • 3:30 p.m.
    Doppelgänger posets and the $K$-theory of flag varieties.
    Zachary Hamaker, University of Florida
    Rebecca Patrias, University of St. Thomas
    Oliver Pechenik*, University of Waterloo
    Nathan Williams, University of Texas at Dallas
    (1165-06-172)
  • 4:00 p.m.
    Isotopies of Latin tableaux.
    Ray Karpman*, Otterbein University
    (1165-05-282)