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A Murgnahan-Nakayama rule for Schubert polynomials

Authors :
Andrew Morrison
Source :
Discrete Mathematics & Theoretical Computer Science, Vol DMTCS Proceedings vol. AT,..., Iss Proceedings (2014)
Publication Year :
2014
Publisher :
Discrete Mathematics & Theoretical Computer Science, 2014.

Abstract

We expose a rule for multiplying a general Schubert polynomial with a power sum polynomial in $k$ variables. A signed sum over cyclic permutations replaces the signed sum over rim hooks in the classical Murgnahan-Nakayama rule. In the intersection theory of flag manifolds this computes all intersections of Schubert cycles with tautological classes coming from the Chern character. We also discuss extensions of this rule to small quantum cohomology.

Details

Language :
English
ISSN :
13658050
Volume :
DMTCS Proceedings vol. AT,...
Issue :
Proceedings
Database :
Directory of Open Access Journals
Journal :
Discrete Mathematics & Theoretical Computer Science
Publication Type :
Academic Journal
Accession number :
edsdoj.2aba2faaef514f12878abc9eb18488fa
Document Type :
article
Full Text :
https://doi.org/10.46298/dmtcs.2420