The multiplicity of a singularity in a vexillary Schubert variety

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 multiplicity of a point on such a Schubert variety. The formula is expressed in terms of excited Young diagrams, and extends r...

Ausführliche Beschreibung

Bibliographische Detailangaben

Veröffentlicht in:	arXiv.org 2021-12
Hauptverfasser:	Anderson, David, Ikeda, Takeshi, Jeon, Minyoung, Kawago, Ryotaro
Format:	Artikel
Sprache:	eng
Schlagworte:	Combinatorial analysis Isomorphism Loci Permutations
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!