activity
20242026
collaborators

6 papers

math.CO2026

Reciprocity of Skew Hall-Littlewood-Schubert Series

Ron M. Adin, Tomer Bauer

Carnevale, Schein and Voll proved self-reciprocity of the generalized Igusa functions, and Maglione and Voll did the same for the Hall-Littlewood-Schubert series. We introduce a si…

math.CO2026

Conjugating full cycles by adjacent transpositions: diameter and sorting time

Ron M. Adin, Eli Bagno, Yuval Roichman

We establish upper and lower bounds on the maximal number of steps needed to transform a cyclic permutation to the canonical cyclic permutation using conjugation by adjacent transp…

math.RT2025

Asymptotics of higher Lie characters

Ron M. Adin, Yuval Roichman, Natalia Tsilevich

Higher Lie characters form a distinguished family of symmetric group characters, which appear in many areas of algebra and combinatorics. An old open problem of Thrall is to decomp…

math.CO2025

Circular sorting

Ron M. Adin, Noga Alon, Yuval Roichman

We determine the maximal number of steps required to sort labeled points on a circle by adjacent swaps. Lower bounds for sorting by all swaps, not necessarily adjacent, are giv…

math.CO2025

Descent set distribution for permutations with cycles of only odd or only even lengths

Ron M. Adin, Pál Hegedűs, Yuval Roichman

It is known that the number of permutations in the symmetric group with cycles of odd lengths only is equal to the number of permutations with cycles of even lengths only.…

math.CO2024

Higher Lie characters and root enumeration in classical Weyl groups

Ron M. Adin, Pál Hegedüs, Yuval Roichman

We prove that, for any integer , the -th root enumerator in the classical Weyl group of type is a proper character. The proof uses higher Lie characters of type .