activity
20032026
most citedTowards generalized cohomology Schubert calculus via formal root polynomials

21 citations · 37 across the 15 of their papers we have counts for

collaborators

16 papers

math.AG2026

Billey-Type Formula for KL-Schubert Classes in Hyperbolic Cohomology

Cristian Lenart, Krista Zehr, Changlong Zhong

This paper studies the KL-Schubert classes defined by Kazhdan-Lusztig bases in -theory and hyperbolic cohomology of flag varieties. We first establish Poincaré dualities of thes…

math.CO2025

Combinatorial Aspects of Elliptic Schubert Calculus

Cristian Lenart, Rui Xiong, Changlong Zhong

The main goal of this paper is to extend two fundamental combinatorial results in Schubert calculus on flag manifolds from equivariant cohomology and -theory to equivariant elli…

math.QA2025

Quantum -theoretic divisor axiom for flag manifolds

Cristian Lenart, Satoshi Naito, Daisuke Sagaki +2

We prove an identity for (torus-equivariant) 3-point, genus 0, -theoretic Gromov-Witten invariants of flag manifolds , which can be thought of as a replacement for the ``di…

math.AG2023

Elliptic classes via the periodic Hecke module and its Langlands dual

Cristian Lenart, Gufang Zhao, Changlong Zhong

This paper explores a construction of the elliptic classes of the Springer resolution using the periodic Hecke module. The module is established by employing the Poincaré line bund…

math.QA2021

Inverse -Chevalley formulas for semi-infinite flag manifolds, II: arbitrary weights in ADE type

Cristian Lenart, Satoshi Naito, Daniel Orr +1

We continue the study, begun in [Kouno-Naito-Orr-Sagaki, 2021], of inverse Chevalley formulas for the equivariant -group of semi-infinite flag manifolds. Using the language of a…

math.CO2021

Quantum K-theory Chevalley formulas in the parabolic case

Takafumi Kouno, Cristian Lenart, Satoshi Naito +3

We derive cancellation-free Chevalley-type multiplication formulas in the T-equivariant quantum K-theory of Grassmannians of type A and C, and also those of two-step flag manifolds…