Quadratic degenerations of odd-orthogonal Schubert varieties |
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Authors: | Diane E Davis |
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Institution: | Department of Mathematical and Computer Sciences, Metropolitan State College of Denver, Campus Box 38, P.O. Box 173362, Denver, CO 80217-3362, USA |
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Abstract: | This paper is the second in a series leading to a type Bn geometric Littlewood-Richardson rule. The rule will give an interpretation of the Bn Littlewood-Richardson numbers as an intersection of two odd-orthogonal Schubert varieties and will consider a sequence of linear and quadratic deformations of the intersection into a union of odd-orthogonal Schubert varieties. This paper describes the setup for the rule and specifically addresses results for quadratic deformations, including a proof that at each quadratic degeneration, the results occur with multiplicity one. This work is strongly influenced by Vakil’s 14]. |
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Keywords: | 14M15 14N15 |
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