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arXiv:math/0511537 [math.CO]AbstractReferencesReviewsResources

Multiplicity-free Schubert calculus

Hugh Thomas, Alexander Yong

Published 2005-11-22, updated 2007-07-13Version 2

We give a nonrecursive, combinatorial characterization of multiplicity-free products of Grassmannian Schubert classes. This answers a question of W. Fulton and extends results of J. Stembridge.

Comments: 14 pages; v2 has updated references and minor edits; accepted to Canadian Bulletin of Math
Journal: Canadian Math. Bulletin, 53 (2010), no.1, 171-186
Categories: math.CO, math.AG
Subjects: 14M15, 05E05
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