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math.AG2021★ 1 cited
The multiplicity of a singularity in a vexillary Schubert variety
David Anderson, Takeshi Ikeda, Minyoung Jeon +1
In a classical-type flag variety, we consider a Schubert variety associated to a vexillary (signed) permutation, and establish a combinatorial formula for the Hilbert-Samuel multip…
math.AG2021
Covexillary Schubert varieties and Kazhdan-Lusztig Polynomials
Minyoung Jeon
We establish combinatorial and inductive formulas for Kazhdan-Lusztig polynomials associated to covexillary elements in classical types, extending results of Boe, Lascoux-Schützenb…
math.AG2021
Mather classes of Schubert varieties via small resolutions
Minyoung Jeon
We express a Schubert expansion of the Chern-Mather class for Schubert varieties in the even orthogonal Grassmannian via integrals involving Pfaffians and pushforward of the small…