Proceedings

The full proceedings can be found in Sém. Lothar. Combin. issue 93B.

The following extended abstracts have been accepted as talks and posters (presenters are emphasized).

Talks

• Colleen Robichaux and Igor Pak: Signed combinatorial interpretations in algebraic combinatorics. (Extended abstract)
• Per Alexandersson and Aryaman Jal: Rook matroids and log-concavity of P-Eulerian polynomials. (Extended abstract)
• Yongle Luo and Baptiste Rognerud: Lattice of transfer systems. (Extended abstract)
• Luis Ferroni, Jacob P. Matherne and Lorenzo Vecchi: Chow polynomials of posets. (Extended abstract)
• Jasper M. Liu, Brendon Rhoades, Yichen Ma and Hai Zhu: Matrix loci, orbit harmonics, and shadow play. (Extended abstract)
• Emma Yu Jin and Xiaowei Lin: Modified Macdonald polynomials and Mahonian statistics. (Extended abstract)
• Eugene Gorsky, Soyeon Kim, Tonie Scroggin and José Simental: Skew shaped positroid varieties and double Bott–Samelson varieties. (Extended abstract)
• Jimmy He and Michael Wheeler: Symmetries of periodic and free boundary \(q\)-Whittaker measures. (Extended abstract)
• Ilani Axelrod-Freed, Sarah Brauner, Patricia Grace Commins, Judy Hsin-Hui Chiang and Veronica Lang: Spectrum of random-to-random shuffling in the Hecke algebra. (Extended abstract)
• Andrew Elvey Price, Wenjie Fang, Baptiste Louf and Michael Wallner: Bivariate asymptotics via random walks: application to large genus maps. (Extended abstract)
• Álvaro Gutiérrez: Towards plethystic sl(2) crystals. (Extended abstract)
• Raman Sanyal, Alexander E. Black and Niklas Lütjeharms: From linear programming to colliding particles. (Extended abstract)
• Elena S. Hafner, Karola Meszaros and Alexander C. Vidinas: Polytopal perspectives on the Alexander polynomial of special alternating links. (Extended abstract)
• Edward Allen, Kyle Celano and Sarah Mason: A new proof of an inverse Kostka matrix problem posed by Egecioglu and Remmel and related identities in Sym and NSym. (Extended abstract)
• Tatsuyuki Hikita: On the Stanley–Stembridge conjecture. (Extended abstract)
• Amanda Burcroff, Kyungyong Lee and Lang Mou: A combinatorial formula for rank 2 scattering diagrams. (Extended abstract)
• Hyeonjae Choi, Donghyun Kim and Seung Jin Lee: Lusztig \(q\)-weight multiplicities and KR crystals. (Extended abstract)
• Juliette Schabanel: 3D permutations and triangle solitaire. (Extended abstract)
• Enrica Duchi and Gilles Schaeffer: From order one catalytic decompositions to context-free specifications, bijectively. (Extended abstract)
• Ryoshun Oba: Multigraded strong Lefschetz property for balanced simplicial complexes. (Extended abstract)
• Adrien Segovia: \((P,\phi)\)-Tamari lattices. (Extended abstract)
• Yassine El Maazouz and Yelena Mandelshtam: The positive orthogonal Grassmannian. (Extended abstract)
• Philippe Nadeau, Hunter Spink and Vasu Tewari: Quasisymmetric Divided Differences. (Extended abstract)
• Minh-Tâm Quang Trinh and Nathan Williams: Cell Decompositions of Hecke Traces and Link Polynomials. (Extended abstract)
• Tracy Chin: Real Stability and Log Concavity are coNP-Hard. (Extended abstract)
• Theo Douvropoulos and Olivier Bernardi: Deformations of restricted reflection arrangements. (Extended abstract)
• Grant Barkley: Extended weak order for \(\widetilde{S}_n\) and the lattice of torsion classes. (Extended abstract)

Poster session I

• Tao Gui: Conjectures on the Reduced Kronecker Coefficients. (Extended abstract)
• Colin Defant: Random Combinatorial Billiards and Stoned Exclusion Processes. (Extended abstract)
• Stefan Mitrovic: The Redei-Berge function in noncommuting variables. (Extended abstract)
• Bruce Sagan and Alexander N. Wilson: Centralizers in the plactic monoid. (Extended abstract)
• Jaeseong Oh and Donghyun Kim: Extending the Science Fiction and the Loehr–Warrington formula. (Extended abstract)
• Kyla Pohl and Benjamin Young: Jack Combinatorics of the Equivariant Edge Measure. (Extended abstract)
• Christian Gaetz and Yibo Gao: Bijections between interlacing triangles, Schubert puzzles, and graph colorings. (Extended abstract)
• Chao Xu and Jiang Zeng: Variations of the $(\alpha,t)$-Eulerian polynomials and gamma positivity. (Extended abstract)
• Kevin Liu and Mei Yin: Descents and flag major index on conjugacy classes of colored permutation groups without short cycles. (Extended abstract)
• Ningxin Zhang: Characteristic Polynomials of Deformations of Coxeter Arrangements via Levels of Regions. (Extended abstract)
• Yibo Gao and Hai Zhu: Boolean structure constants. (Extended abstract)
• Hsin-Chieh Liao: Equivariant $\gamma$-positivity of Chow rings and augmented Chow rings of matroids. (Extended abstract)
• Jeronimo Valencia-Porras: A combinatorial proof of an identity involving Eulerian numbers. (Extended abstract)
• Reuven Hodges and Yibo Gao: Orbit structures and complexity in Schubert and Richardson Varieties. (Extended abstract)
• Zach Benton, Jane Kwak, Suho Oh, Mateo Torres and Mckinley Xie: On z-superstable and critical configurations of chip-firing pairs. (Extended abstract)
• Samrith Ram: Subspace profiles, $q$-Whittaker functions and Krylov methods. (Extended abstract)
• Michael Borinsky, Chiara Meroni and Maximilian Wiesmann: Asymptotic count of edge-bicolored graphs. (Extended abstract)
• Sathish Kumar V and Jacinta Torres: The branching models of Kwon and Sundaram via flagged hives. (Extended abstract)
• Maria Gillespie, Joseph Pappe and Kyle Salois: When is the chromatic quasisymmetric function symmetric?. (Extended abstract)
• Ryo Takahashi: Failure of the Lefschetz property for the Graphic Matroid. (Extended abstract)
• Richard M. Green and Tianyuan Xu: Orthogonal roots, Macdonald representations, and quasiparabolic W-sets. (Extended abstract)
• Mark Skandera and Daniel Soskin: Multiplicative permanental inequalities for totally positive matrices. (Extended abstract)
• Milo James Bechtloff Weising: Higher Rank Macdonald Polynomials. (Extended abstract)
• John Lentfer: A conjectural basis for the (1, 2)-bosonic-fermionic coinvariant ring. (Extended abstract)
• Yifeng Zhang: Molecules of affine fixed-point-free W-graphs. (Extended abstract)
• Elena Hoster: The Chow and augmented Chow polynomials of Uniform Matroids. (Extended abstract)
• Emil Verkama and Svante Linusson: Enumerating 1324-avoiders with few inversions. (Extended abstract)
• Sebastian Degen and Lukas Kühne: Most q-matroids are not representable. (Extended abstract)
• Sarah Brauner, Sylvie Corteel, Zajj Daugherty and Anne Schilling: Crystal skeletons and their axioms. (Extended abstract)
• Hong Chen and Siddhartha Sahi: Schur positivity and Jack positivity. (Extended abstract)
• Maria Gillespie, Eugene Gorsky and Sean Griffin: A geometric interpretation and skewing formula for the Delta Theorem. (Extended abstract)
• Jake Levinson and Haggai Liu: Fundamental groups of moduli spaces of real weighted stable curves. (Extended abstract)
• Farid Aliniaeifard and Shu Xiao Li: Peak algebra in noncommuting variables. (Extended abstract)
• Kyle Celano, Jennifer Elder, Kimberly P. Hadaway, Pamela E. Harris, Amanda Priestley and Gabe Roland Udell: Inversions in Parking Functions. (Extended abstract)
• Amanda Schwartz: The HOMFLY Polynomial of a Forest Quiver. (Extended abstract)
• Yanjun Chen: On the Classification of Schubert Varieties in Partial Flag Varieties. (Extended abstract)
• Masato Konoike: A new class of magic positive Ehrhart polynomials of reflexive polytopes. (Extended abstract)
• Yifei Li and Sheila Sundaram: Rank-selected Segre powers of the Boolean lattice. (Extended abstract)
• Zhehan Xu, Linji Chen and Lai Yunhao: The Isomorphism Problem for (Co)adjoint Schubert Varieties. (Extended abstract)
• Jim Haglund, Jaeseong Oh and Meesue Yoo: $\alpha$-chromatic symmetric functions. (Extended abstract)
• Ethan Y. H. Li, Grace. M. X. Li, Arthur L. B. Yang and Zhong-Xue Zhang: Strongly nice property and Schur positivity of graphs. (Extended abstract)
• Arnau Padrol and Germain Poullot: New criteria for polytope indecomposability and new rays of the submodular cone. (Extended abstract)
• Ryo Uchiumi: Permutation representation of classical Weyl groups on mod q lattices. (Extended abstract)
• Kento Nakada, Takeshi Suzuki and Yoshitaka Toyosawai: Colored hooks and poset structure of cylindric diagrams. (Extended abstract)
• Evita Nestoridi and Alan Yan: Cutoff for the Biased Random Transposition Shuffle. (Extended abstract)
• Allen Knutson, Mario Sanchez and Melissa Sherman-Bennett: Permutahedral subdivisions and class formulas from Coxeter elements. (Extended abstract)
• Brendon Rhoades, Vasu Tewari and Andy Wilson: Tutte polynomials in superspace. (Extended abstract)
• Fu Liu and Warut Thawinrak: Faces of Parking Function Polytopes. (Extended abstract)
• Raj Gandhi: Deforming the motivic Segre classes of Schubert cells in the Grassmannian. (Extended abstract)
• Joonkyung Lee, Jaeseong Oh and Jaehyeon Seo: Counting homomorphisms in antiferromagnetic graphs via Lorentzian polynomials. (Extended abstract)
• Abigail R. Price, Ada Mead Stelzer and Alexander Yong: Filtered RSK and matrix Schubert varieties. (Extended abstract)
• Mitsuki Hanada: A charge monomial basis of the Garsia–Procesi ring. (Extended abstract)
• Jihyeug Jang, Jang Soo Kim, Jianping Pan, Joseph Pappe and Anne Schilling: A hidden symmetry of refined canonical stable Grothendieck polynomials. (Extended abstract)
• Andrew Reimer-Berg: Insertion algorithms and pattern avoidance on trees arising in the Kapranov embedding of M-bar_{0,n}. (Extended abstract)
• Sam Spellman and Cristian Lenart: A Combinatorial Model for Affine Demazure Crystals of Levels Zero and One. (Extended abstract)
• Alejandro Morales, Greta Panova, Leonid Petrov and Damir Yeliussizov: Grothendieck Shenanigans: Permutons from pipe dreams via integrable probability. (Extended abstract)
• Evgeny Smirnov: Partial order on involutive permutations and B-orbit closures in double Grassmannians. (Extended abstract)
• Neha Shailesh Goregaokar: Interpreting the chromatic polynomial coefficients via hyperplane arrangements. (Extended abstract)
• Sergi Elizalde: A generalized Lalanne–Kreweras involution for rectangular tableaux. (Extended abstract)
• Robert Muth, Thomas Nicewicz, Liron Speyer and Louise Sutton: Simple modules for affine type A KLR algebras via skew Specht modules. (Extended abstract)

Poster session II

• Joshua Maglione and Christopher Voll: Hall-Littlewood polynomials, affine Schubert series, and lattice enumeration. (Extended abstract)
• Ming Yean Lim: The number of irreducibles in the plethysm $s_\lambda[s_m]$. (Extended abstract)
• Ali Haidar and Oded Yacobi: Relations between generalised Gelfand-Tsetlin and Kazhdan-Lusztig bases of S_n. (Extended abstract)
• Tongyu Nian, Shuhei Tsujie, Ryo Uchiumi and Masahiko Yoshinaga: q-deformation of graphic arrangements. (Extended abstract)
• Emanuele Delucchi, Lukas Kühne and Leonie Mühlherr: Combinatorial invariants of finite metric spaces and the Wasserstein arrangement. (Extended abstract)
• Riccardo Biagioli and Lorenzo Perrone: On a conjecture of Dyer on the join in the weak order of a Coxeter group. (Extended abstract)
• Gavin Hobbs, Tommy Parisi, Mark Skandera and Jiayuan Wang: A generalization of Deodhar's defect statistic for Iwahori–Hecke algebras of type BC. (Extended abstract)
• Ada Mead Stelzer and Alexander Yong: RSK as a linear operator. (Extended abstract)
• Allen Knutson and Paul Zinn-Justin: Generic pipe dreams, lower-upper varieties, and Schwartz–MacPherson classes. (Extended abstract)
• Hyunsoo Cho, Eunmi Kim, Ho-Hyeong Lee, Kyeongjun Lee, Ae Ja Yee and Jaeyeong Yoo: GBG-rank generating functions for ordinary, self-conjugate, and doubled distinct partitions. (Extended abstract)
• Jiyang Gao, Shiliang Gao and Yibo Gao: Quantum Bruhat Graphs and Tilted Richardson Varieties. (Extended abstract)
• Kam Hung Tong: Orbits in the affine flag variety of type A. (Extended abstract)
• Sam Armon and Joshua P. Swanson: On a super version of Thrall's problem. (Extended abstract)
• Tatyana Benko and Benjamin Young: Double boxes and double dimers. (Extended abstract)
• Alexander E. Black, Sophie Rehberg and Raman Sanyal: Poset Permutahedra. (Extended abstract)
• Raymond Oliver Chou, Brendon Rhoades and Tomoo Matsumura: Equivariant Cohomology of Grassmannian Spanning Lines. (Extended abstract)
• Jaewon Min: Proof of the Newell–Littlewood saturation conjecture. (Extended abstract)
• Muchen Ju, Junjie Ni, Yihan Xiao and Kaixin Wang: Arborescences of Random Covering Graphs. (Extended abstract)
• Eric Marberg and Jiayi Wen: On some Grothendieck expansions. (Extended abstract)
• Akihiro Higashitani: Equivariant $\gamma$-nonnegativity of order polytopes of graded posets. (Extended abstract)
• Harry Richman, Farbod Shokrieh and Chenxi Wu: Principal minors of tree distance matrices. (Extended abstract)
• Filip Jonsson Kling, Samuel Lundqvist, Fatemeh Mohammadi, Matthias Orth and Eduardo Saenz-de-Cabezon: Gröbner bases and the Lefschetz properties for powers of a general linear form in the squarefree algebra. (Extended abstract)
• Elise Catania: A Toric Analogue for Greene's Rational Function. (Extended abstract)
• Jonah Berggren: Turbulence Polyhedra. (Extended abstract)
• Ziyao Fu, Ni Tang, Sylvester W. Zhang and Yunchi Zheng: Expansion Formulae for $SL_3$ Fock-Goncharov Cluster Algebras. (Extended abstract)
• Sylvie Corteel, Alexander Lazar and Anna Vanden Wyngaerd: Positivity Phenomena for Lattice Paths at q = -1. (Extended abstract)
• Anita Arora: The monopole-dimer model on high-dimensional cylindrical, toroidal, Möbius and Klein grids. (Extended abstract)
• Matthias Beck and Danai Deligeorgaki: Canon Permutation Posets. (Extended abstract)
• Ekaterina Vassilieva and Darij Grinberg: A permutation based approach to the q-deformation of the Dynkin Operator. (Extended abstract)
• Grant Barkley, Jonathan Boretsky, Christopher Eur and Jiyang Gao: On Two Notions of Total Positivity for Generalized Partial Flag Varieties of Classical Lie Types. (Extended abstract)
• Yakob Kahane and Marni Mishna: Differential transcendence and walks on self-similar graphs. (Extended abstract)
• Cesar Ceballos and Matthias Mueller: Geometric Realizations of $\nu$-Associahedra via Brick Polyhedra (Extended Abstract). (Extended abstract)
• Houcine Ben Dali, Valentin Bonzom and Maciej Dołęga: (q,t)-tau functions and path operators. (Extended abstract)
• Yairon Cid-Ruiz, Yupeng Li and Jacob P. Matherne: Logarithmic concavity of polynomials arising from equivariant cohomology. (Extended abstract)
• Dominique Guillot, Himanshu Gupta, Prateek Kumar Vishwakarma and Chi Hoi Yip: Entrywise transforms and positive definite matrices over finite fields. (Extended abstract)
• Esther Banaian, Elise Catania, Christian Gaetz, Miranda Moore, Gregg Musiker and Kayla Wright: Twists, r-dimer covers, and web duality. (Extended abstract)
• Clément Chenevière, Wenjie Fang and Corentin Henriet: A new definition for $m$-Cambrian lattices. (Extended abstract)
• Ayah K. Almousa, Shiliang Gao and Daoji Huang: Standard Monomials for Positroid Varieties. (Extended abstract)
• Sara Billey and Matjaž Konvalinka: Quilts of Alternating Sign Matrices. (Extended abstract)
• Antoine Abram and Jose Bastidas: The $h^∗$-polynomials of type C hypersimplices. (Extended abstract)
• Michael Gonzalez, Rosa Orellana and Mario Tomba: On the reconstruction of trees from their chromatic symmetric functions. (Extended abstract)
• Ian Cavey and Yi-Lin Lee: Domino Tilings and Macdonald Polynomials. (Extended abstract)
• Christian Gaetz, Oliver Pechenik, Stephan Pfannerer, Jessica Striker and Joshua P. Swanson: Web bases for two-column tableaux from hourglass plabic graphs. (Extended abstract)
• Jack Kendrick, Elise Catania, Heather M. Russell and Julianna S. Tymoczko: Identifying Orbit Lengths for Promotion. (Extended abstract)
• Santiago Estupinan and Oliver Pechenik: A new shifted Littlewood–Richardson rule and related developments. (Extended abstract)
• Mitchell Lee: The restriction problem and the Frobenius transform. (Extended abstract)
• Daniel Soskin and Prateek Kumar Vishwakarma: Plücker inequalities for weakly separated coordinates in TNN Grassmannians. (Extended abstract)
• Nick Early, Lukas Kühne and Leonid Monin: Minkowski Decompositions of Alcoved Polytopes. (Extended abstract)
• Jinting Liang and Bruce E. Sagan: Log-concavity and log-convexity via distributive lattices. (Extended abstract)
• Joshua Arroyo, Zachary Hamaker, Jianping Pan and Graham Hawkes: Type C K–Stanley symmetric functions and Kraskiewicz–Hecke insertion. (Extended abstract)
• Gabe Roland Udell and Raj Gandhi: A degeneration of the brick variety and a mixed subdivision of the associahedron into cubes. (Extended abstract)
• Daoji Huang, Mark Shimozono and Tianyi Yu: A Bijection Between Marked Bumpless Pipedreams and Compatible Pairs. (Extended abstract)
• William T. Dugan, Maura Hegarty, Alejandro H. Morales and Annie Raymond: Volume and Lattice Points of Generalized Pitman–Stanley Flow Polytopes. (Extended abstract)
• Yibo Gao, Thomas Lam and Lei Xue: Dual mixed volumes of polytopes. (Extended abstract)
• Tuong Le, Shuge Ouyang, Leo Tao, Joseph Restivo and Angelina Zhang: Quantum bumpless pipe dreams. (Extended abstract)
• Juliana Curtis: The Integer Decomposition Property in Smooth Polytopes. (Extended abstract)
• Danai Deligeorgaki, Bin Han and Liam Solus: Colored multiset Eulerian polynomials. (Extended abstract)
• Portia Anderson: Commutative Properties of Schubert Puzzles with Convex Polygonal Boundary Shapes. (Extended abstract)
• Matteo Parisi, Melissa Sherman-Bennett, Ran Tessler and Lauren Williams: The Magic Number Conjecture for the m = 2 Amplituhedron and Parke-Taylor Polytopes. (Extended abstract)
• Alex McDonough and Theo Douvropoulos: Generalized Laplacian tilings and root zonotopes. (Extended abstract)
• Ilani Axelrod-Freed, Jiyang Gao and Sylvester W. Zhang: Rhombic Tableaux for Partial Flag Varieties. (Extended abstract)
• Zhixing Chen, Yumou Fei, Jiyang Gao, Yuxuan Sun and Yuchong Zhang: Partial flag positroids. (Extended abstract)

Software demonstrations

• Benjamin Hackl, Andrew Luo, Steve Melczer and Éric Schost: A SageMath Package for Analytic Combinatorics in Several Variables: Beyond the Smooth Case. (Extended abstract)
• Oliver Clarke and Alexander Milner: Computing all Markov Bases. (Extended abstract)

Misc

• Thomas Aird and Duarte Chambel Ribeiro: Plactic-like monoids arising from meets and joins of taiga congruences. (Extended abstract)
• Serena An, Katherine Tung and Yuchong Zhang: Newton polytopes of dual Schubert polynomials. (Extended abstract)
• Olivier Bernardi: Bijections for faces of braid-type arrangements. (Extended abstract)
• Alin Bostan, Frédéric Chyzak, Bérénice Delcroix-Oger, Guillaume Laplante-Anfossi, Vincent Pilaud and Kurt Stoeckl: Diagonals of permutahedra and associahedra. (Extended abstract)
• Maria Gillespie: Higher Specht polynomials for the diagonal action. (Extended abstract)
• Samuele Giraudo and Yannic Vargas: Operads of packed words, quotients, and monomial bases. (Extended abstract)
• Yuhan Jiang: The Ehrhart $h^*$-polynomials of positroid polytopes. (Extended abstract)
• Eva Philippe and Vincent Pilaud: The s-permutahedron and its lattice quotients. (Extended abstract)
• Foster Tom: On $e$-positivity of trees and connected partitions. (Extended abstract)