Proceedings

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

Poster session I

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

Poster session II

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

Software demonstrations

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

Misc

• Maria Gillespie: Higher Specht polynomials for the diagonal action.