Séminaire Lotharingien de Combinatoire - FPSAC 2019

Issue 82B

Proceedings of the 31st International Conference on "Formal Power Series and Algebraic Combinatorics", July 1 - 5, 2019, University of Ljubljana, Slovenia


Extended Abstracts of Talks and Posters

[82B.1] Sho Matsumoto and Piotr Śniady
Stanley character formula for the spin characters of the symmetric groups (12 pp.)
[82B.2] Il-Seung Jang and Jae-Hoon Kwon
Quantum nilpotent subalgebras of classical quantum groups and affine crystals (12 pp.)
[82B.3] Vincent Pilaud
Polytopal realizations and Hopf algebra structures for lattice quotients of the weak order (12 pp.)
[82B.4] Donghyun Kim
A combinatorial formula for the Ehrhart h*-vector of the hypersimplex (12 pp.)
[82B.5] Chris Bowman, Maud De Visscher, and John Enyang
The lattice permutation condition for Kronecker tableaux (12 pp.)
[82B.6] Ira M. Gessel and Yan Zhuang
Homomorphisms on noncommutative symmetric functions and permutation enumeration (12 pp.)
[82B.7] Henri Mühle
Ballot-noncrossing partitions (12 pp.)
[82B.8] Khrystyna Serhiyenko, Melissa Sherman-Bennett, and Lauren Williams
Combinatorics of cluster structures in Schubert varieties (12 pp.)
[82B.9] Hiroshi Naruse and Soichi Okada
Skew hook formula for d-complete posets via equivariant K-theory (12 pp.)
[82B.10] Cara Monical, Oliver Pechenik, and Dominic Searles
K-theoretic polynomials (12 pp.)
[82B.11] Sam Hopkins
The CDE property for skew vexillary permutations (12 pp.)
[82B.12] Yann Palu, Vincent Pilaud, and Pierre-Guy Plamondon
Non-kissing versus non-crossing (12 pp.)
[82B.13] Richard Ehrenborg, Gábor Hetyei, and Margaret Readdy
Refined face count in uniform triangulations of the Legendre polytope (12 pp.)
[82B.14] Cédric Lecouvey and Cristian Lenart
Combinatorics of generalized exponents (12 pp.)
[82B.15] Brendan Pawlowski and Brendon Rhoades
Spanning line configurations (12 pp.)
[82B.16] Federico Ardila, Anna Schindler, and Andrés R. Vindas-Meléndez
The equivariant volumes of the permutahedron (12 pp.)
[82B.17] Sarah Brauner, Forrest Glebe, and David Perkinson
Enumerating linear systems on graphs (12 pp.)
[82B.18] Alexander Wang and Hailun Zheng
Triangulations of the product of spheres with few vertices (12 pp.)
[82B.19] Nantel Bergeron, Cesar Ceballos, and Vincent Pilaud
Hopf dreams (12 pp.)
[82B.20] Mark Dukes and Peter R. W. McNamara
Refining the bijections among ascent sequences, (2+2)-free posets, integer matrices and pattern-avoiding permutations (12 pp.)
[82B.21] Sen-Peng Eu, Tung-Shan Fu, Hsiang-Chun Hsu, Hsin-Chieh Liao, and Wei-Liang Sun
Signed Mahonian identities on permutations with subsequence restrictions (12 pp.)
[82B.22] Arthur L. Gershon
On the asymptotic enumeration of restricted strip arrangements of a chessboard (8 pp.)
[82B.23] Camille Combe
Cubic realizations of Tamari interval lattices (12 pp.)
[82B.24] Farid Aliniaeifard and Nathaniel Thiem
Pattern groups and a poset based Hopf monoid (12 pp.)
[82B.25] Karim Adiprasito, Gaku Liu, and Michael Temkin
Semistable reduction in characteristic 0 (10 pp.)
[82B.26] Nicholas R. Beaton, Aleksander L. Owczarek, and Ruijie Xu
Quarter-plane lattice paths with interacting boundaries: Kreweras and friends (12 pp.)
[82B.27] Cara Monical, Oliver Pechenik, and Travis Scrimshaw
Crystal structures for symmetric Grothendieck polynomials (12 pp.)
[82B.28] Rahul Ilango, Oliver Pechenik, and Michael Zlatin
Unique rectification in d-complete posets (12 pp.)
[82B.29] Eric Marberg and Brendan Pawlowski
Stanley symmetric functions for signed involutions (12 pp.)
[82B.30] Hyunsoo Cho, JiSun Huh, and Jaebum Sohn
A bijection between ordinary partitions and self-conjugate partitions with same disparity (12 pp.)
[82B.31] Sami Assaf and Dominic Searles
Skew polynomials and extended Schur functions (12 pp.)
[82B.32] Jean-Christophe Aval, Théo Karaboghossian, and Adrian Tanasa
Polynomial invariants and reciprocity theorems for the Hopf monoid of hypergraphs and its sub-monoids (12 pp.)
[82B.33] 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 (12 pp.)
[82B.34] Dan Betea, Jérémie Bouttier, Peter Nejjar, and Mirjana Vuletić
New edge asymptotics of skew Young diagrams via free boundaries (11 pp.)
[82B.35] Christian Gaetz and Yibo Gao
The weak Bruhat order on the symmetric group is Sperner (8 pp.)
[82B.36] Cesar Ceballos, Wenjie Fang, and Henri Mühle
The Steep-Bounce Zeta Map in Parabolic Cataland (12 pp.)
[82B.37] Connor Ahlbach and Joshua P. Swanson
Thrall's problem: cyclic sieving, necklaces, and branching rules (12 pp.)
[82B.38] Eli Bagno, Riccardo Biagioli, and David Garber
Some identities involving second kind Stirling numbers of types B and D (12 pp.)
[82B.39] Spencer Backman, Francisco Santos, and Chi Ho Yuen
Topological bijections for oriented matroids (12 pp.)
[82B.40] Cédric Lecouvey and Cristian Lenart
Atomic decomposition of characters and crystals (12 pp.)
[82B.41] Ezgi Kantarcı Oğuz
Descent polynomials, peak polynomials and an involution on permutations (7 pp.)
[82B.42] Adam Clearwater and Mark Skandera
Total nonnegativity and evaluations of Hecke algebra characters (12 pp.)
[82B.43] Robert Mcalmon, Suho Oh, and David Xiang
Flats of a positroid from its decorated permutation (12 pp.)
[82B.44] Alexander Garver, Rebecca Patrias, and Hugh Thomas
Minuscule reverse plane partitions via quiver representations (12 pp.)
[82B.45] Christopher Eur
Divisors on matroids and their volumes (12 pp.)
[82B.46] Joseph Doolittle and Bennet Goeckner
Resolving Stanley's conjecture on k-fold acyclic complexes (9 pp.)
[82B.47] Duncan Levear
A bijection for Shi arrangement faces (12 pp.)
[82B.48] Baptiste Louf
Simple formulas for constellations and bipartite maps with prescribed degrees (12 pp.)
[82B.49] Sheila Sundaram
On the Schur positivity of sums of power sums (12 pp.)
[82B.50] Emily Barnard and Thomas McConville
Lattices from graph associahedra (12 pp.)
[82B.51] Henri Derycke and Yvan Le Borgne
Restricted Tutte polynomials for some periodic oriented forests on infinite square lattice (12 pp.)
[82B.52] Anshul Adve, Colleen Robichaux, and Alexander Yong
Computational complexity, Newton polytopes, and Schubert polynomials (12 pp.)
[82B.53] Jehanne Dousse
On partition identities of Capparelli and Primc (12 pp.)
[82B.54] Ben Salisbury and Travis Scrimshaw
Candidate for the crystal B(-\infty) for the queer Lie superalgebra (12 pp.)
[82B.55] Gene B. Kim and Sangchul Lee
Modifying Curtiss' theorem to prove central limit theorems (12 pp.)
[82B.56] Kyle P. Meyer
Descent representations of generalized coinvariant algebras (12 pp.)
[82B.57] Joel Brewster Lewis and Alejandro H. Morales
Factorization problems in complex reflection groups (12 pp.)
[82B.58] Tom Halverson
Set-partition tableaux, symmetric group multiplicities, and partition algebra modules (12 pp.)
[82B.59] Samantha Dahlberg
A new formula for Stanley's chromatic symmetric function for unit interval graphs and e-positivity for triangular ladder graphs (12 pp.)
[82B.60] Marcelo Aguiar, Jose Bastidas, and Swapneel Mahajan
Characteristic elements for real hyperplane arrangements (12 pp.)
[82B.61] Per Alexandersson and Robin Sulzgruber
P-partitions and p-positivity (12 pp.)
[82B.62] C. Matthew Farmer and Joshua Hallam
The noncrossing bond poset of a graph (12 pp.)
[82B.63] Zachary Hamaker, Eric Marberg, and Brendan Pawlowski
Involution pipe dreams (12 pp.)
[82B.64] Stephen Melczer, Greta Panova, and Robin Pemantle
Counting partitions inside a rectangle (12 pp.)
[82B.65] Michele D'Adderio, Alessandro Iraci, and Anna Vanden Wyngaerd
Delta conjectures (12 pp.)
[82B.66] Eric Marberg and Yifeng Zhang
Affine transitions for involution Stanley symmetric functions (12 pp.)
[82B.67] Ron M. Adin, Ira M. Gessel, Victor Reiner, and Yuval Roichman
Cyclic quasi-symmetric functions (12 pp.)
[82B.68] Satyan L. Devadoss, Cassandra Durell, and Stefan Forcey
Split network polytopes and network spaces (12 pp.)
[82B.69] Jan Draisma and Felipe Rincón
Tropical ideals do not realise all Bergman fans (11 pp.)
[82B.70] Mireille Bousquet-Mélou, Andrew Elvey Price, and Paul Zinn-Justin
Eulerian orientations and the six-vertex model on planar maps (12 pp.)
[82B.71] Nancy Wallace
Explicit combinatorial formulas for some irreducible characters of the GLk x Sn-module of multivariate diagonal harmonics (12 pp.)
[82B.72] David Harry Richman
The distribution of Weierstrass points on a tropical curve (12 pp.)
[82B.73] Cédric Lecouvey and Pierre Tarrago
Alcove random walks and k-Schur functions (12 pp.)
[82B.74] Emily Gunawan and Ralf Schiffler
Unitary friezes and frieze vectors (12 pp.)
[82B.75] Manfred Buchacher and Manuel Kauers
Inhomogeneous restricted lattice walks (12 pp.)
[82B.76] Cesar Ceballos and Viviane Pons
The s-weak order and s-permutahedra (12 pp.)
[82B.77] Sami Assaf and Stephanie van Willigenburg
Skew key polynomials and the key poset (12 pp.)
[82B.78] Nadia Lafrenière
Eigenvalues of symmetrized shuffling operators (12 pp.)
[82B.79] Michael Chmutov, Gabriel Frieden, Dongkwan Kim, Joel B. Lewis, and Elena Yudovina
An affine generalization of evacuation (12 pp.)
[82B.80] Oleksandra Gasanova
Powers of monomial ideals and the Ratliff-Rush operation (12 pp.)
[82B.81] Rachel Bailey and Emily Gunawan
Cluster algebras and binary words (12 pp.)
[82B.82] Jérémie Bettinelli
Slit-slide-sew bijections for bipartite and quasibipartite plane maps (12 pp.)
[82B.83] Iva Halacheva, Allen Knutson, and Paul Zinn-Justin
Restricting Schubert classes to symplectic Grassmannians using self-dual puzzles (12 pp.)
[82B.84] Svante Linusson, Samu Potka, and Robin Sulzgruber
On random shifted standard Young tableaux and 132-avoiding sorting networks (12 pp.)
[82B.85] Sunita Chepuri
Plabic R-matrices (12 pp.)
[82B.86] Darij Grinberg
A quotient of the ring of symmetric functions generalizing quantum cohomology (12 pp.)
[82B.87] Alina R. Mayorova and Ekaterina A. Vassilieva
A q-deformed type B Cauchy identity and Chow's quasisymmetric functions (12 pp.)
[82B.88] Esther Banaian and Elizabeth Kelley
Snake graphs and frieze patterns from orbifolds (12 pp.)
[82B.89] Mariel Supina
The Hopf monoid of orbit polytopes (12 pp.)
[82B.90] Rebecca Goldin and Allen Knutson
Schubert structure operators (12 pp.)
[82B.91] Mario Sanchez
Möbius inversion as duality for Hopf monoids (12 pp.)
[82B.92] Theo Douvropoulos
On enumerating factorizations in reflection groups (12 pp.)
[82B.93] Alexander Lazar and Michelle L. Wachs
On the homogenized Linial arrangement: intersection lattice and Genocchi numbers (12 pp.)
[82B.94] Michael Joseph and Tom Roby
Birational antichain toggling and rowmotion (12 pp.)
[82B.95] Dave Anderson, Takeshi Ikeda, Minyoung Jeon, and Ryotaro Kawago
Multiplicities of Schubert varieties in the symplectic flag variety (12 pp.)
[82B.96] Eric Stucky
Cyclic sieving, necklaces, and bracelets (12 pp.)
[82B.97] Sylvie Corteel, Olya Mandelshtam, and Lauren Williams
From multiline queues to Macdonald polynomials via the exclusion process (12 pp.)
[82B.98] Federico Ardila, Federico Castillo, Christopher Eur, and Alex Postnikov
Deformations of Coxeter permutahedra and Coxeter submodular functions (12 pp.)
[82B.99] Federico Castillo and José Alejandro Samper
Finiteness theorems for matroid complexes with prescribed topology (12 pp.)

Software Presentations

[82B.100] Katja Berčič
Supporting data-driven mathematics: database and interface generation (6 pp.)
[82B.101] Antonio Jiménez-Pastor
DD-finite functions in Sage (8 pp.)
[82B.102] Wencin Poh and Anne Schilling
Queer supercrystals in SageMath (11 pp.)
[82B.103] Martin Rubey and Christian Stump
FindStat - a database and search engine for combinatorial statistics and maps (8 pp.)
[82B.104] Lorenzo Venturello
Balanced triangulations on few vertices and an implementation of cross-flips (12 pp.)
[82B.105] Janoš Vidali
Computing distance-regular graph and association scheme parameters in SageMath with sage-drg (8 pp.)