Research
My research is in algebraic, enumerative, and topological combinatorics. I’m particularly interested in problems involving hyperplane arrangements, Young tableaux, and permutation enumeration, as well as in structural questions about the topology of simplicial complexes.
Published Papers
On the q-Enumeration of Barely Set-Valued Plane Partitions and Linear Extensions
S. Hopkins, A. Lazar, S. Linusson
European Journal of Combinatorics
2023
Ferrers Graphs, D-Permutations, and Surjective Staircases
A. Lazar
The Ramanujan Journal
2022
Partition and Cohen–Macaulay Extenders
J. Doolittle, B. Goeckner, A. Lazar
European Journal of Combinatorics
2022
The Homogenized Linial Arrangement and Genocchi Numbers
A. Lazar, M. Wachs
Combinatorial Theory
2022
A Chip-Firing Game on the Product of Two Graphs and the Tropical Picard Group
A. Lazar
Electronic Journal of Combinatorics
2017
Preprints
Set-Valued Catalan Combinatorics
A. Lazar, S. Linusson
2024
Decorated Square Paths at q = -1
S. Corteel, A. Lazar, A. Vanden Wyngaerd
2024
Shuffle Theorems and Sandpiles
M. D’Adderio, M. Dukes, A. Iraci, A. Lazar, Y. Le Borgne, A. Vanden Wyngaerd
2023
Extended Abstracts
Shuffle Theorems and Sandpiles
M. D’Adderio, M. Dukes, A. Iraci, A. Lazar, Y. Le Borgne, A. Vanden Wyngaerd
Séminaire Lotharingien de Combinatoire
2024
Two-Row Set-Valued Young Tableaux: Catalan+k Combinatorics
A. Lazar, S. Linusson
Séminaire Lotharingien de Combinatoire
2024
On the Homogenized Linial Arrangement: Intersection Lattice and Genocchi Numbers
A. Lazar, M. Wachs
Séminaire Lotharingien de Combinatoire
2019
Talks
Set-Valued Tableaux: q-Enumeration and Catalan Combinatorics
Journées Annuelles du GT CombAlg 2023
Paris, France
Lexicographic Shellability Statistics
NORCOM 2022
Tromsø, Norway
Posters
Shuffle Theorems and Sandpiles
An animation of our toppling algorithm
FPSAC 2024
Bochum, Germany
Séminaire Lotharingien de Combinatoire 89
Bertinoro, Italy
On the Homogenized Linial Arrangement: Intersection Lattice and Genocchi Numbers
FPSAC 2019
Ljubljana, Slovenia