Proceedings

The following extended abstracts have been accepted as talks, posters, and software demonstrations. Names of presenters are followed by asterisks (*).

Talks

• Ron Adin, Sergi Elizalde, Pál Hegedüs and Yuval Roichman*: Descent sets of permutations with only even or only odd cycle lengths (Abstract)
• Seamus Albion Ferlinc* and Joshua Jeishing Wen: A modular $(q,t)$-Nekrasov–Okounkov formula and wreath Macdonald polynomials (Abstract)
• Robert Angarone, Patricia Commins, Trevor Karn, Satoshi Murai, Brendon Rhoades* and Andy Wilson: The superspace coinvariant ring (Abstract)
• Federico Ardila-Mantilla, Sergio Cristancho*, Graham Denham, Christopher Eur, June Huh and Botong Wang: Tree metrics and log-concavity for matroids (Abstract)
• Arvind Ayyer and Naren Sundaravaradan*: A bijection on balanced words reversing both des and maj (Abstract)
• Houcine Ben Dali* and Lauren Kiyomi Williams: A combinatorial formula for Interpolation Macdonald polynomials (Abstract)
• Petter Brändén and Lorenzo Vecchi*: Chow polynomials of totally nonnegative matrices and posets (Abstract)
• Elisabeth Bullock* and Yuhan Jiang: The Ehrhart Series of Alcoved Polytopes (Abstract)
• Colin Defant*, Yuhan Jiang, Rene Marczinzik, Adrien Segovia, David E. Speyer, Hugh Thomas and Nathan Williams: Rowmotion and Echelonmotion (Abstract)
• Andrew Elvey Price*, Emmanuel Humbert and Kilian Raschel: On the finiteness of the group associated with weighted walks in multidimensional orthants (Abstract)
• Christopher Eur*, Alex Fink and Matthew Larson: $h^*$–vectors for matroids (Abstract)
• Chaim Even-Zohar, Matteo Parisi*, Melissa Sherman-Bennett, Ran Tessler and Lauren Williams: Plabic tangles and cluster promotion maps (Abstract)
• Sean Griffin*, Anton Mellit, Marino Romero, Kevin Weigl and Joshua Jeishing Wen: A Macdonald expansion of the $q$-chromatic symmetric functions and the Stanley–Stembridge Conjecture (Abstract)
• Tao Gui, Yuqi Jia, Xinkai Yu, Zhexi Zhang* and Yuchen Zhu: Structure constants of Peterson Schubert calculus (Abstract)
• Sam Hopkins, Jesse Kim and Stephan Pfannerer*: Cyclic sieving for staircase plane partitions via crystals and electrical networks (Abstract)
• Xiaoyu Huang, Blake Jackson* and Kyu-Hwan Lee: From Black Box to Bijection: Interpreting Machine Learning to Build a Zeta Map Algorithm (Abstract)
• Seunghun Lee* and Eran Nevo: On an extension problem on the moment curve (Abstract)
• Cristian Lenart*, Rui Xiong and Changlong Zhong: On the Combinatorics of Schubert Calculus in Elliptic Cohomology (Abstract)
• Nathan Lindzey*: An Eventown Result for Permutations (Abstract)
• Ruizhen Liu*: Deligne–Lusztig varieties, toric orbifolds, and the $q$-Klyachko algebra (Abstract)
• Eric Marberg, Kam Hung Tong and Tianyi Yu*: Grothendieck positivity for square root crystals (Abstract)
• Thomas McConville*, James Propp and Bruce Sagan: Hyperbinary partitions and $q$-deformed rationals (Abstract)
• Jaewon Min*: When is a Schubert variety spherical? (Abstract)
• Igor Pak and Colleen Robichaux*: Vanishing of Schubert coefficients in probabilistic polynomial time (Abstract)
• Dawei Shen, Mia Smith* and David E. Speyer: Electroid Varieties and the Lagrangian Grassmannian (Abstract)
• Saskia K. Solotko*, Katherine Tung, Mengyuan Yang and Yuchong Zhang: Multitriangulations on ciliated surfaces (Abstract)
• Anna Weigandt*: Changing Bases with Pipe Dream Combinatorics (Abstract)

Poster Session 1

• Ben Adenbaum*, Spencer Daugherty and Nicholas Mayers: Dimensions of toggleability spaces (Abstract)
• Ron M. Adin, Yuval Roichman and Natalia Tsilevich*: Asymptotics of higher Lie characters (Abstract)
• Marie Albenque, Laurent Ménard and Nicolas Tokka*: Blossoming bijection for bipartite maps: a new approach via orientations and applications to the Ising model (Abstract)
• Ilani Axelrod-Freed*, Colin Defant, Katherine Tung, Hanna Mularczyk, Sara Billey, Clare Minnerath, Connor T. McCausland* and Son Nguyen: Two Proofs of Rubey’s Lattice Conjecture (Abstract)
• Spencer Backman, Richard Danner, Hsin-Chieh Liao* and Crow Stephenson: Combinatorics of Leray models for permutahedral varieties and beyond (Abstract)
• Ivan Balashov, Constantine Bulavenko and Yaroslav Molybog*: Asymptotics of generalized Tesler matrices (Abstract)
• Julia Bierent, David Jordan, Matthias Vancraeynest and Monica Vazirani*: Dimension of the $GL_N$ skein module of the mapping torus (Abstract)
• Alexander E. Black and Milo James Bechtloff Weising*: Saturation for Non-symmetric Macdonald Polynomials (Abstract)
• Timothy Russell Blanton, Anton Dochtermann, Isabelle Hong, Suho Oh and Zhan Zhan*: Parking functions and chip-firing on hypergraphs (Abstract)
• Jonathan Boretsky*, Veronica Calvo Cortes and Yassine El Maazouz: Totally positive skew symmetric matrices (Abstract)
• Sarah Brauner, Patricia Grace Commins*, Darij Grinberg and Franco Saliola: The $q$-deformed random-to-random family in the Hecke algebra (Abstract)
• Kieran Calvert, Aram Dermenjian*, Alex Fink and Ben Smith: Quadratic exchange equations for Coxeter matroids (Abstract)
• Ariana Chin*: Classification of Zamolodchikov periodic cluster algebras (Abstract)
• Zawad Chowdhury*, Rekha R. Thomas and Stefan Steinerberger: Graphical Designs find Combinatorial Structures (Abstract)
• Suchakree Chueluecha* and Jennifer Morse: Skew-linked Catalan functions and Genocchi numbers (Abstract)
• Jesús A. De Loera*, Jillian Eddy, Sawyer Jack Robertson and Jose Alejandro Samper Casas: Which Polytopes are Positively Curved? (Abstract)
• Theo Douvropoulos*: Extended Cyclic Sieving Phenomena (Abstract)
• Sergi Elizalde*: Cylindric growth diagrams (Abstract)
• Luis Ferroni, Alejandro Morales* and Greta Panova: Skew shapes, Ehrhart positivity and beyond (Abstract)
• Christian Gaetz* and Yibo Gao: Billey-Postnikov posets (Abstract)
• Neha Shailesh Goregaokar* and Olivier Bernardi: Bijectivity of a generalized Pak-Stanley labeling (Abstract)
• Lazar Guterman* and Eran Nevo: Matroids arising from algebraic shifting (Abstract)
• Álvaro Gutiérrez, Álvaro L. Martínez, Michał Szwej* and Mark Wildon: Plethystic lifts of $q$-binomial identities (Abstract)
• Jon Pål Hamre*, Benjamin Schröter, Lorenzo Vecchi and Emil Verkama: Chow classes of matroids and standard Young tableaux (Abstract)
• Mitsuki Hanada* and Raymond Oliver Chou: A descent basis for the $\Delta$-Springer module (Abstract)
• Florent Hivert, Vincent Pilaud and Ludovic Schwob*: Heaps of rhombic dodecahedra, catalan congruences on alternating sign matrices, and bases of the Temperley–Lieb algebra (Abstract)
• Yakob Kahane*: On two open problems on Ehrhart polynomials of fences (Abstract)
• Siddarth Kannan* and Terry Dekun Song: Pólya enumeration, wreath product symmetric functions, and moduli spaces of curves (Abstract)
• Aaron Lauve and Anthony Aurthur Lazzeroni*: Interpolation in Species and a lift of the Hopf algebra of r-Quasisymmetric Functions (Abstract)
• John Lentfer*: Diagonal supersymmetry for coinvariant rings (Abstract)
• Eric Marberg*: Classical double Grothendieck transitions (Abstract)
• Joseph McDonough*, Pavlo Pylyavskyy and Shiyun Wang: Kirillov–Reshetikhin dual equivalence graphs (Abstract)
• Anastasia Nathanson*: Multipermutohedral Chow rings (Abstract)
• Ethan Partida* and Colin Crowley: Graded Ehrhart Theory of Unimodular Zonotopes (Abstract)
• Nicolas Avila Ramirez*, Luis Ferroni and Alejandro Morales: Luck and magic for Pitman–Stanley polytopes (Abstract)
• Nathan Reading and Tanvi Thummar*: m is for meet congruence (Abstract)
• Marcus Schönfelder*: The 1/4-phenomenon of placement probabilities in the Aztec diamond (Abstract)
• Dawei Shen* and Emanuele Ventura: The ABCT Variety is a Positive Geometry (Abstract)
• Joshua P. Swanson*, Christian Gaetz, Jessica Striker and Haihan Wu: Web bases, pocket complexes, and affine buildings (Abstract)
• Aarush Vailaya* and Foster Tom: The chromatic symmetric function of graphs glued at a single vertex (Abstract)

Poster Session 2

• Antoine Abram, Jose Bastidas, Benjamin Dequêne*, Alejandro Morales, GaYee Park and Hugh Thomas: Flows on cyclic graphs, complete gentle algebras, and the Mutoperhedron (Abstract)
• Alibek Adilzhan* and Damir Yeliussizov: Flagged Hamel-Goulden formulas (Abstract)
• Sota Asai, Osamu Iyama, Kaveh Mousavand* and Charles Paquette: Left modular and extremal lattices through brick-directed algebras (Abstract)
• Spencer Backman, Galen Dorpalen-Barry*, Anastasia Nathanson, Ethan Partida and Noah Prime: Line Shellings of Bergman Fans (Abstract)
• Mohammad Bardestani, Keivan Mallahi-Karai, Samrith Ram and Hadi Salmasian*: Point counting on intersections of adjoint orbits with ad-nilpotent ideals over $\mathbb{F}_q$ (Abstract)
• Jose Bastidas, Sarah Brauner, Mathieu Guay-Paquet, Alejandro Morales, GaYee Park* and Franco Saliola: Factorizations for the Iwahori–Hecke algebra (Abstract)
• Nantel Bergeron, Lucas Gagnon*, Hunter Spink and Vasu Tewari: Introducing the Coxeter flag variety (Abstract)
• Olivier Bernardi and Jonathan J. Fang*: Subgraphs Vs Orientations: infinite families of equidistributions (Abstract)
• Christin Bibby and Peter Ramsey*: The Orlik-Solomon algebra of a locally geometric poset (Abstract)
• Sara Billey, Herman Homan Chau and Kevin Liu*: Commutation classes of reduced words and higher Bruhat orders for affine permutations (Abstract)
• Aram Bingham, Lisa Johnston, Colin Lawson, Rosa Orellana, Jianping Pan* and Chelsea Sato: The Chromatic Symmetric Function for Unicyclic Graphs (Abstract)
• Timothy Russell Blanton*, Jesus A. De Loera and Melissa Sherman-Bennett: On Orbit Realizations of Coxeter Permutahedra (Abstract)
• Jonathan Boretsky* and Zach Walsh: Excluding a line from positroids (Abstract)
• Beth Anne Castellano*, Rosa Orellana and Mike Zabrocki: Transition matrices for character bases of the symmetric group (Abstract)
• Jack Chou*, Linus Setiabrata and Tianyi Yu: Grothendieck polynomials of fireworks and inverse fireworks permutations (Abstract)
• Oliver Clarke, Akihiro Higashitani* and Francesca Zaffalon: Combinatorial Mutation Equivalence of Restricted Chain-Order Polytopes (Abstract)
• Patricia Grace Commins* and Benjamin Steinberg: Invariant theory for left regular bands (Abstract)
• Michele D’Adderio and Alessio Sgubin*: A Loehr-Remmel bijection in the $n \times kn$ grid (Abstract)
• Guilherme Zeus Dantas e Moura* and Olya Mandelshtam: Shape changing identities for permuted-basement nonsymmetric Macdonald polynomials (Abstract)
• Colin Defant, Melissa Sherman-Bennett and Nathan Williams*: Permutahedron Triangulations via Total Linear Stability and the Dual Braid Group (Abstract)
• Jehanne Dousse, Jihyeug Jang* and Frederic Jouhet: Particle motion methods for Andrews–Gordon and Stanton type identities (Abstract)
• Laura Escobar, Patricia J. Klein* and Anna Weigandt: Algebra and geometry of ASM weak order (Abstract)
• Qi Fang, Shishuo Fu*, Haijun Li and Quan Yuan: Parity patterns meet Genocchi numbers: four labelings and three bijections (Abstract)
• Raj Gandhi* and Ethan Partida: Algebraic cobordism rings of wonderful varieties and matroids (Abstract)
• Darij Grinberg, Tom Roby*, Stephan Wagner and Mei Yin: Downs and Ups in the Weyl Algebra (Abstract)
• Zachary Hamaker* and Jesse Kim: Odd Shifted Parking Functions (Abstract)
• Hans Höngesberg*, Matjaz Konvalinka and Martin Rubey: Properties of the quilt lattice (Abstract)
• Elena Hoster* and Christian Stump: Chow polynomials of simplicial posets with positive h-vector are real-rooted (Abstract)
• Daniel Hwang, Juliet Whidden* and Josephine Yu: Computing parametric weighted Ehrhart polynomials of smooth polytopes (Abstract)
• Takashi Imamura*, Matteo Mucciconi, Tomohiro Sasamoto and Travis Scrimshaw: The periodic multi-layer polynuclear growth: Integrability and applications (Abstract)
• Matthew Larson* and Alan Stapledon: Complementary vectors of doubly Cohen-Macaulay complexes (Abstract)
• Ming Yean Lim*: On asymptotics of unitriangular groups (Abstract)
• Igor Makhlin*: Tropical cluster varieties, phylogenetic trees, and generalized associahedra (Abstract)
• Chau Nguyen, Son Nguyen* and Dora Woodruff: Shuffle Tableaux, Littlewood–Richardson Coefficients, and Schur Log-Concavity (Abstract)
• Rosa Paten* and Dora Woodruff: Key Positivity and Temperley-Lieb Immanants (Abstract)
• Andrew Sack*: Lattices from Pointed Building Sets: Generalized Ornamentation Lattices (Abstract)
• Avery St Dizier, Linus Setiabrata* and Tianyi Yu: Generalized orthodontia, punched tableaux, and Lascoux expansion of sheared characters (Abstract)
• Jason Stack*: Parking Spaces for Complex Reflection Groups (Abstract)
• Ada Mead Stelzer*: Surprise polynomiality in algebraic combinatorics (Abstract)
• Rui Xiong* and Yibo Gao: Positivity in triple Schubert calculus (Abstract)

Software Demonstrations

• Leigh Foster*: Tilepaint: visualizations and calculations in tilings, perfect matchings, and $n$-mer covers (Abstract)
• Kyle Huang*, Robert Lauff and Charles Zhang: UniTriSat: Unimodular Triangulations via SATISFIABILITY (Abstract)