## Accepted papers

The following papers have been accepted as talks and posters (presenters are in bold).

### Talks

Karim Adiprasito, **Gaku Liu** and Michael Temkin: *Semistable reduction in characteristic 0*

Connor Ahlbach and **Joshua Swanson**: *Thrall's problem: cyclic sieving, necklaces, and branching rules*

**Emily Barnard** and Thomas McConville: *Lattices from graph associahedra*

Nantel Bergeron, **César Ceballos** and Vincent Pilaud: *Hopf dreams*

**Dan Betea**, Jérémie Bouttier, Peter Nejjar and Mirjana Vuletić: *New edge asymptotics of skew Young diagrams via free boundaries*

Mireille Bousquet-Mélou, **Andrew Elvey Price** and Paul Zinn-Justin: *Eulerian orientations and the six-vertex model on planar maps*

César Ceballos, **Wenjie Fang** and Henri Mühle: *The steep-bounce zeta map in parabolic Cataland*

**César Ceballos** and Viviane Pons: *The s-weak order and s-permutahedra*

Sylvie Corteel, **Olya Mandelshtam** and Lauren Williams: *From multiline queues to Macdonald polynomials via the exclusion process*

**Samantha Dahlberg**: *A new formula for Stanley's chromatic symmetric function for unit interval graphs and e-positivity for triangular ladder graphs*

**Jehanne Dousse**: *On partition identities of Capparelli and Primc*

**Theo Douvropoulos**: *On enumerating factorizations in reflection groups*

**Jan Draisma** and Felipe Rincón: *Tropical ideals do not realise all Bergman fans*

**Christopher Eur**: *Divisors on matroids and their volumes*

Christian Gaetz and **Yibo Gao**: *The weak Bruhat order on the symmetric group is Sperner*

**Alexander Garver**, Rebecca Patrias and Hugh Thomas: *Minuscule reverse plane partitions via quiver representations*

**Emily Gunawan** and Ralf Schiffler: *Unitary friezes and frieze vectors*

**Iva Halacheva**, Allen Knutson and Paul Zinn-Justin: *Restricting Schubert classes to symplectic Grassmannians using self-dual puzzles*

**Tom Halverson**: *Set-partition tableaux, symmetric group multiplicities, and partition algebra modules*

**Judith Jagenteufel**: *A Sundaram type bijection for SO(2k+1): vacillating tableaux and pairs consisting of a standard Young tableau and an orthogonal Littlewood-Richardson tableau*

**Nadia Lafrenière**: *Eigenvalues of the symmetrized shuffling operators*

Cédric Lecouvey and **Cristian Lenart**: *Combinatorics of generalized exponents*

**Cédric Lecouvey** and Pierre Tarrago: *Alcove random walks and k-Schur functions*

Joel Lewis and **Alejandro Morales**: *Factorization problems in complex reflection groups*

Sho Matsumoto and **Piotr Śniady**: *Stanley character formula for the spin characters of the symmetric groups*

**Brendan Pawlowski** and Brendon Rhoades: *Spanning line configurations*

Khrystyna Serhiyenko, **Melissa Sherman-Bennett** and Lauren Williams: *Combinatorics of cluster structures in Schubert varieties*

### Poster session 1 (Monday, July 1)

**Ron Adin**, Ira Gessel, Victor Reiner and Yuval Roichman: *Cyclic quasi-symmetric functions*

Anshul Adve, **Colleen Robichaux** and Alexander Yong: *Computational complexity, Newton polytopes, and Schubert polynomials*

Per Alexandersson and **Robin Sulzgruber**: *P-partitions and p-positivity*

Dave Anderson, Takeshi Ikeda, **Minyoung Jeon** and **Ryotaro Kawago**: *Multiplicities of Schubert varieties in the symplectic flag variety*

Federico Ardila, Anna Schindler and **Andrés Vindas Meléndez**: *The equivariant volumes of the permutahedron*

**Sami Assaf** and Stephanie van Willigenburg: *Skew key polynomials and the key poset*

Spencer Backman, Francisco Santos and **Chi Ho Yuen**: *Topological bijections for oriented matroids*

**Rachel Bailey** and Emily Gunawan: *Cluster algebras and binary words*

**Nicholas Beaton**, Aleksander Owczarek and Ruijie Xu: *Quarter-plane lattice paths with interacting boundaries: Kreweras and friends*

**Manfred Buchacher** and Manuel Kauers: *Inhomogeneous restricted lattice walks*

Federico Castillo and **José Alejandro Samper**: *Finiteness theorems for matroid complexes with prescribed topology*

**Sunita Chepuri**: *Plabic R-matrices*

Adam Clearwater and **Mark Skandera**: *Total nonnegativity and evaluations of Hecke algebra characters*

Michele D'Adderio, **Alessandro Iraci** and Anna Vanden Wyngaerd: *Delta conjectures*

Matthew Farmer and **Josh Hallam**: *The noncrossing bond poset of a graph*

**Oleksandra Gasanova**: *Powers of monomial ideals and the Ratliff-Rush operation*

**Arthur Gershon**: *On the asymptotic enumeration of restricted strip arrangements of a chessboard*

**Samuel Hopkins**: *The CDE property for skew vexillary permutations*

**Ezgi Kantarci**: *Descent polynomials, peak polynomials and an involution on permutations*

**Gene Kim** and Sangchul Lee: *A central limit theorem for descents and major indices in fixed conjugacy classes of S _{n}*

**Alexander Lazar** and Michelle Wachs: *On the homogenized linial arrangement: intersection lattice and Genocchi numbers*

**Duncan Levear**: *A bijection for Shi arrangement faces*

**Baptiste Louf**: *Simple formulas for constellations and bipartite maps with prescribed degrees*

**Eric Marberg** and Brendan Pawlowski: *Stanley symmetric functions for signed involutions*

**Alina Mayorova** and Ekaterina Vassilieva: *A q-deformed type B Cauchy identity and Chow’s quasisymmetric functions*

Stephen Melczer, **Greta Panova** and Robin Pemantle: *Counting partitions inside a rectangle*

Cara Monical, **Oliver Pechenik** and Dominic Searles: *K-theoretic polynomials*

**Henri Mühle**: *Ballot-noncrossing partitions*

Hiroshi Naruse and **Soichi Okada**: *Skew hook formula for d-complete posets via equivariant K-theory*

**Vincent Pilaud**: *Polytopal realizations and Hopf algebra structures for lattice quotients of the weak order*

**Ben Salisbury** and Travis Scrimshaw: *Candidate for the crystal B(-∞) for the queer Lie superalgebra*

**Mario Sánchez**: *Möbius inversion as duality for Hopf monoids*

**Eric Stucky**: *Cyclic sieving, necklaces, and bracelets*

**Mariel Supina**: *The Hopf monoid of orbit polytopes*

**Nancy Wallace**: *Explicit combinatorial formulas for some irreducible characters of the GL _{k} × S_{n}-module of multivariate diagonal harmonics*

**Alexander Wang** and Hailun Zheng: *Triangulations of the product of spheres with few vertices*

### Poster session 2 (Tuesday, July 2)

Marcelo Aguiar, **José Bastidas** and Swapneel Mahajan: *Characteristic elements for real hyperplane arrangements*

Farid Aliniaeifard and **Nathaniel Thiem**: *Pattern groups and a poset based Hopf monoid*

Federico Ardila, **Federico Castillo**, Christopher Eur and Alexander Postnikov: *Deformations of Coxeter permutahedra and Coxeter submodular functions*

Sami Assaf and **Dominic Searles**: *Skew polynomials and extended Schur functions*

Jean-Christophe Aval, **Théo Karaboghossian** and Adrian Tanasa: *Polynomial invariants and reciprocity theorems for the Hopf monoid of hypergraphs and its sub-monoids*

**Eli Bagno**, Riccardo Biagioli and David Garber: *Some identities involving second kind Stirling numbers of types B and D*

**Esther Banaian** and **Elizabeth Kelley**: *Generalized snake graphs and frieze patterns from orbifolds*

**Jérémie Bettinelli**: *Slit-slide-sew bijections for bipartite and quasibipartite plane maps*

Yvan Le Borgne and **Henri Derycke**: *Restricted Tutte polynomials for some periodic oriented forests on infinite square lattice*

**Sarah Brauner**, David Perkinson and Forrest Glebe: *Enumerating linear systems on graphs*

Michael Chmutov, **Gabriel Frieden**, Dongkwan Kim, Joel Lewis and Elena Yudovina: *An affine generalization of evacuation*

Hyunsoo Cho, **JiSun Huh** and Jaebum Sohn: *A bijection between self-conjugate and ordinary partitions and counting simultaneous cores*

**Camille Combe**: *Cubic realizations of Tamari interval lattices*

Satyan Devadoss, Cassandra Durell and **Stefan Forcey**: *Split network polytopes and network spaces*

Maud De Visscher, John Enyang and **Chris Bowman**: *The lattice permutation condition for Kronecker tableaux*

**Joseph Doolittle** and Bennet Goeckner: *Resolving Stanley's conjecture on k-fold acyclic complexes*

**Mark Dukes** and Peter McNamara: *Refining the bijections among ascent sequences, (2+2)-free posets, integer matrices and pattern-avoiding permutations*

**Sen-Peng Eu**, Tung-Shan Fu, Hsiang-Chun Hsu, Hsin-Chieh Liao and Wei-Liang Sun: *Signed Mahonian identities on permutations with subsequence restrictions*

Ira Gessel and **Yan Zhuang**: *Homomorphisms on noncommutative symmetric functions and permutation enumeration*

**Rebecca Goldin** and Allen Knutson: *Schubert structure operators*

**Darij Grinberg**: *A quotient of the ring of symmetric functions generalizing quantum cohomology*

**Zachary Hamaker**, Eric Marberg and Brendan Pawlowski: *Involution pipe dreams*

**Gábor Hetyei**, Richard Ehrenborg and Margaret Readdy: *Refined face count in uniform triangulations of the Legendre polytope*

Rahul Ilango, Oliver Pechenik and **Michael Zlatin**: *Unique rectification in d-complete posets*

**Il-Seung Jang** and Jae-Hoon Kwon: *Quantum nilpotent subalgebras of classical quantum groups and affine crystals*

**Michael Joseph** and Tom Roby: *Birational antichain toggling and rowmotion*

**Donghyun Kim**: *A combinatorial formula for the Ehrhart h*-vector of the hypersimplex*

Cédric Lecouvey and **Cristian Lenart**: *Atomic decomposition of characters and crystals*

Svante Linusson, **Samu Potka** and Robin Sulzgruber: *On random shifted standard Young tableaux and 132-avoiding sorting networks*

Eric Marberg and **Yifeng Zhang**: *Affine transitions for involution Stanley symmetric functions*

Robert Mcalmon, **Suho Oh** and David Xiang: *Flats of a positroid from its decorated permutation*

**Kyle Meyer**: *Descent representations of generalized coinvariant algebras*

Cara Monical, Oliver Pechenik and **Travis Scrimshaw**: *Crystal structures for symmetric Grothendieck polynomials*

**Yann Palu**, Vincent Pilaud and Pierre-Guy Plamondon: *Non-kissing versus non-crossing*

**Harry Richman**: *Equidistribution of Weierstrass points on a tropical curve*

**Sheila Sundaram**: *On the Schur positivity of sums of power sums*