BEGIN:VCALENDAR
VERSION:2.0
PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Steph van Willigenburg (UBC)
DTSTART:20200528T183000Z
DTEND:20200528T193000Z
DTSTAMP:20260404T111109Z
UID:combisem/1
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/1/">The e-positivity of chromatic symmetric functions</a>\nby Steph va
 n Willigenburg (UBC) as part of Algebraic and enumerative combinatorics se
 minar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Lukas Nabergall (University of Waterloo)
DTSTART:20200604T183000Z
DTEND:20200604T193000Z
DTSTAMP:20260404T111109Z
UID:combisem/2
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/2/">Weighted generating functions for weighted chord diagrams</a>\nby 
 Lukas Nabergall (University of Waterloo) as part of Algebraic and enumerat
 ive combinatorics seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Steve Melczer (UQAM / CRM)
DTSTART:20200611T183000Z
DTEND:20200611T193000Z
DTSTAMP:20260404T111109Z
UID:combisem/3
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/3/">An Upper Bound on Graphical Partitions</a>\nby Steve Melczer (UQAM
  / CRM) as part of Algebraic and enumerative combinatorics seminar\n\nAbst
 ract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Victor Reiner (University of Minnesota)
DTSTART:20200618T183000Z
DTEND:20200618T193000Z
DTSTAMP:20260404T111109Z
UID:combisem/4
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/4/">Sandpiles and representation theory</a>\nby Victor Reiner (Univers
 ity of Minnesota) as part of Algebraic and enumerative combinatorics semin
 ar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ali Mahmoud (University of Waterloo)
DTSTART:20200625T183000Z
DTEND:20200625T193000Z
DTSTAMP:20260404T111109Z
UID:combisem/5
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/5/">2-Connected Chord Diagrams and Applications in QFT</a>\nby Ali Mah
 moud (University of Waterloo) as part of Algebraic and enumerative combina
 torics seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Timothy Miller (University of Waterloo)
DTSTART:20200702T183000Z
DTEND:20200702T193000Z
DTSTAMP:20260404T111109Z
UID:combisem/6
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/6/">Factorial Schur Functions and Quantum Integrability</a>\nby Timoth
 y Miller (University of Waterloo) as part of Algebraic and enumerative com
 binatorics seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Oliver Pechenik (University of Waterloo)
DTSTART:20200716T183000Z
DTEND:20200716T193000Z
DTSTAMP:20260404T111109Z
UID:combisem/7
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/7/">Dynamics of plane partitions</a>\nby Oliver Pechenik (University o
 f Waterloo) as part of Algebraic and enumerative combinatorics seminar\n\n
 Abstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/7/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Gilyoung Cheong (University of Michigan)
DTSTART:20200730T183000Z
DTEND:20200730T193000Z
DTSTAMP:20260404T111109Z
UID:combisem/8
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/8/">P\\'olya enumeration theorems in algebraic geometry</a>\nby Gilyou
 ng Cheong (University of Michigan) as part of Algebraic and enumerative co
 mbinatorics seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/8/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Logan Crew (University of Waterloo)
DTSTART:20200917T183000Z
DTEND:20200917T193000Z
DTSTAMP:20260404T111109Z
UID:combisem/9
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/9/">Edge Deletion-Contraction in the Chromatic and Tutte Symmetric Fun
 ctions</a>\nby Logan Crew (University of Waterloo) as part of Algebraic an
 d enumerative combinatorics seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/9/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Aram Dermenjian (York University)
DTSTART:20200924T170000Z
DTEND:20200924T180000Z
DTSTAMP:20260404T111109Z
UID:combisem/10
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/10/">Sign variations and descents</a>\nby Aram Dermenjian (York Univer
 sity) as part of Algebraic and enumerative combinatorics seminar\n\nAbstra
 ct: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/10/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Karen Yeats (University of Waterloo)
DTSTART:20201001T170000Z
DTEND:20201001T180000Z
DTSTAMP:20260404T111109Z
UID:combisem/11
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/11/">Chains of hourglasses and the graph theory of their Feynman integ
 rals</a>\nby Karen Yeats (University of Waterloo) as part of Algebraic and
  enumerative combinatorics seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/11/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Alejandro Morales (UMass Amherst)
DTSTART:20201008T170000Z
DTEND:20201008T180000Z
DTSTAMP:20260404T111109Z
UID:combisem/12
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/12/">Factorization problems in complex reflection groups</a>\nby Aleja
 ndro Morales (UMass Amherst) as part of Algebraic and enumerative combinat
 orics seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/12/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Reuven Hodges (University of Illinois)
DTSTART:20201022T170000Z
DTEND:20201022T180000Z
DTSTAMP:20260404T111109Z
UID:combisem/13
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/13/">Coxeter combinatorics and spherical Schubert geometry</a>\nby Reu
 ven Hodges (University of Illinois) as part of Algebraic and enumerative c
 ombinatorics seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/13/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Florian Aigner (UQAM)
DTSTART:20201029T170000Z
DTEND:20201029T180000Z
DTSTAMP:20260404T111109Z
UID:combisem/14
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/14/">qRSt: A probabilistic Robinson--Schensted correspondence for Macd
 onald polynomials</a>\nby Florian Aigner (UQAM) as part of Algebraic and e
 numerative combinatorics seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/14/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jonathan Jedwab (Simon Fraser University)
DTSTART:20201105T180000Z
DTEND:20201105T190000Z
DTSTAMP:20260404T111109Z
UID:combisem/15
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/15/">Packings of partial difference sets</a>\nby Jonathan Jedwab (Simo
 n Fraser University) as part of Algebraic and enumerative combinatorics se
 minar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/15/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Christos Athanasiadis (University of Athens)
DTSTART:20201112T180000Z
DTEND:20201112T190000Z
DTSTAMP:20260404T111109Z
UID:combisem/16
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/16/">Face enumeration and real-rootedness</a>\nby Christos Athanasiadi
 s (University of Athens) as part of Algebraic and enumerative combinatoric
 s seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/16/
END:VEVENT
BEGIN:VEVENT
SUMMARY:David Wagner (University of Waterloo)
DTSTART:20201119T180000Z
DTEND:20201119T190000Z
DTSTAMP:20260404T111109Z
UID:combisem/17
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/17/">Some new lemmas about polynomials with only real roots</a>\nby Da
 vid Wagner (University of Waterloo) as part of Algebraic and enumerative c
 ombinatorics seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/17/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Huda Ahmed and Yuanning Zhang (NYU and UC Berkeley)
DTSTART:20201126T180000Z
DTEND:20201126T190000Z
DTSTAMP:20260404T111109Z
UID:combisem/18
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/18/">Filtering Grassmannian cohomology via k-Schur functions</a>\nby H
 uda Ahmed and Yuanning Zhang (NYU and UC Berkeley) as part of Algebraic an
 d enumerative combinatorics seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/18/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Loïc Foissy (Université du Littoral Côte d'Opale)
DTSTART:20201203T180000Z
DTEND:20201203T190000Z
DTSTAMP:20260404T111109Z
UID:combisem/19
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/19/">Twisted Hopf algebras</a>\nby Loïc Foissy (Université du Littor
 al Côte d'Opale) as part of Algebraic and enumerative combinatorics semin
 ar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/19/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Laura Colmenarejo (UMass Amherst)
DTSTART:20201210T180000Z
DTEND:20201210T190000Z
DTSTAMP:20260404T111109Z
UID:combisem/20
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/20/">Chromatic symmetric functions of Dyck paths and q-rook theory</a>
 \nby Laura Colmenarejo (UMass Amherst) as part of Algebraic and enumerativ
 e combinatorics seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/20/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Steve Melczer (UWaterloo)
DTSTART:20210114T180000Z
DTEND:20210114T190000Z
DTSTAMP:20260404T111109Z
UID:combisem/21
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/21/">Analytic Combinatorics\, Rigorous Numerics\, and Uniqueness of Bi
 omembranes</a>\nby Steve Melczer (UWaterloo) as part of Algebraic and enum
 erative combinatorics seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/21/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jason Bell (UWaterloo)
DTSTART:20210121T183000Z
DTEND:20210121T193000Z
DTSTAMP:20260404T111109Z
UID:combisem/22
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/22/">The growth of groups and algebras</a>\nby Jason Bell (UWaterloo) 
 as part of Algebraic and enumerative combinatorics seminar\n\nAbstract: TB
 A\n
LOCATION:https://stable.researchseminars.org/talk/combisem/22/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Olya Mandelshtam (UWaterloo)
DTSTART:20210128T180000Z
DTEND:20210128T190000Z
DTSTAMP:20260404T111109Z
UID:combisem/23
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/23/">The multispecies TAZRP and modified Macdonald polynomials</a>\nby
  Olya Mandelshtam (UWaterloo) as part of Algebraic and enumerative combina
 torics seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/23/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jessica Striker (North Dakota State University)
DTSTART:20210204T180000Z
DTEND:20210204T190000Z
DTSTAMP:20260404T111109Z
UID:combisem/24
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/24/">Promotion and rowmotion – an ocean of notions</a>\nby Jessica S
 triker (North Dakota State University) as part of Algebraic and enumerativ
 e combinatorics seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/24/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Julien Courtiel (Université de Caen)
DTSTART:20210211T180000Z
DTEND:20210211T190000Z
DTSTAMP:20260404T111109Z
UID:combisem/25
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/25/">Solving Prellberg and Mortimer's conjecture - bijection(s) betwee
 n Motzkin paths and triangular walks</a>\nby Julien Courtiel (Université 
 de Caen) as part of Algebraic and enumerative combinatorics seminar\n\nAbs
 tract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/25/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Nick Loehr (Virginia Tech)
DTSTART:20210225T180000Z
DTEND:20210225T190000Z
DTSTAMP:20260404T111109Z
UID:combisem/27
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/27/">Chain decompositions for q\,t-Catalan numbers</a>\nby Nick Loehr 
 (Virginia Tech) as part of Algebraic and enumerative combinatorics seminar
 \n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/27/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Colleen Robichaux (University of Illinois at Urbana-Champaign)
DTSTART:20210325T170000Z
DTEND:20210325T180000Z
DTSTAMP:20260404T111109Z
UID:combisem/28
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/28/">An Efficient Algorithm for Deciding the Vanishing of Schubert Pol
 ynomial Coefficients</a>\nby Colleen Robichaux (University of Illinois at 
 Urbana-Champaign) as part of Algebraic and enumerative combinatorics semin
 ar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/28/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ralph Kaufmann (Purdue)
DTSTART:20210304T180000Z
DTEND:20210304T190000Z
DTSTAMP:20260404T111109Z
UID:combisem/29
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/29/">Graphs and combinatorics with a relationship to algebra\, geometr
 y and physics</a>\nby Ralph Kaufmann (Purdue) as part of Algebraic and enu
 merative combinatorics seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/29/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Karen Yeats (University of Waterloo)
DTSTART:20210311T180000Z
DTEND:20210311T190000Z
DTSTAMP:20260404T111109Z
UID:combisem/30
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/30/">Equivalences of Wilson loop diagrams</a>\nby Karen Yeats (Univers
 ity of Waterloo) as part of Algebraic and enumerative combinatorics semina
 r\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/30/
END:VEVENT
BEGIN:VEVENT
SUMMARY:David Wagner (University of Waterloo)
DTSTART:20210318T170000Z
DTEND:20210318T180000Z
DTSTAMP:20260404T111109Z
UID:combisem/31
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/31/">The Poset Conjecture: results\, counterexamples\, and open proble
 ms</a>\nby David Wagner (University of Waterloo) as part of Algebraic and 
 enumerative combinatorics seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/31/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Amy Wiebe (Freie Universität Berlin)
DTSTART:20210401T170000Z
DTEND:20210401T180000Z
DTSTAMP:20260404T111109Z
UID:combisem/32
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/32/">A combinatorial approach to Minkowski tensors of polytopes</a>\nb
 y Amy Wiebe (Freie Universität Berlin) as part of Algebraic and enumerati
 ve combinatorics seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/32/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jonathan Novak (UCSD)
DTSTART:20210408T170000Z
DTEND:20210408T180000Z
DTSTAMP:20260404T111109Z
UID:combisem/33
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/33/">A Tale of Two Integrals</a>\nby Jonathan Novak (UCSD) as part of 
 Algebraic and enumerative combinatorics seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/33/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Yannic Vargas (Potsdam University)
DTSTART:20210415T170000Z
DTEND:20210415T180000Z
DTSTAMP:20260404T111109Z
UID:combisem/34
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/34/">Primitive bases of combinatorial Hopf algebras</a>\nby Yannic Var
 gas (Potsdam University) as part of Algebraic and enumerative combinatoric
 s seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/combisem/34/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Christian Bean (Reykjavik University)
DTSTART:20210513T170000Z
DTEND:20210513T180000Z
DTSTAMP:20260404T111109Z
UID:combisem/35
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/35/">Automating the enumeration of pattern-avoiding permutations</a>\n
 by Christian Bean (Reykjavik University) as part of Algebraic and enumerat
 ive combinatorics seminar\n\n\nAbstract\nWhen a combinatorial specificatio
 n is known for a combinatorial class there are well-established tools\, su
 ch as symbolic and analytic combinatorics\, that derive an enumeration\, a
 symptotics\, and the ability to randomly generate instances of the objects
 . However\, the initial step from definition to structural description is 
 often ad-hoc. This is the gap combinatorial exploration attempts to fill.\
 n\nIn this seminar\, we will focus on the TileScope algorithm\, an applica
 tion of combinatorial exploration to permutation classes. It is capable of
  finding a combinatorial specification for almost every permutation class 
 that avoids some subset of length 4 patterns\, and many more. The enumerat
 ions of these classes were either unknown or were the main results of rese
 arch papers\, some as recent as 2018. We will discuss the strategies requi
 red for these specifications.\n\nEmail organizer for Zoom link\n
LOCATION:https://stable.researchseminars.org/talk/combisem/35/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Steven Karp (UQAM)
DTSTART:20210520T170000Z
DTEND:20210520T180000Z
DTSTAMP:20260404T111109Z
UID:combisem/36
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/combi
 sem/36/">q-Whittaker functions\, finite fields\, and Jordan forms</a>\nby 
 Steven Karp (UQAM) as part of Algebraic and enumerative combinatorics semi
 nar\n\n\nAbstract\nThe q-Whittaker symmetric function associated to an int
 eger partition is a q-analogue of the Schur symmetric function. We give a 
 new formula for the q-Whittaker function in terms of partial flags compati
 ble with a nilpotent endomorphism over the finite field of size 1/q. We sh
 ow that considering pairs of partial flags and taking Jordan forms leads t
 o a probabilistic bijection between nonnegative-integer matrices and pairs
  of semistandard tableaux of the same shape\, which we call the q-Burge co
 rrespondence. In the q -> 0 limit\, we recover a known description of the 
 classical Burge correspondence (also called column RSK). This is joint wor
 k with Hugh Thomas.\n
LOCATION:https://stable.researchseminars.org/talk/combisem/36/
END:VEVENT
END:VCALENDAR