OSU Mathematics Seminars and Colloquia
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Wed, Sep 11, 2019
Lie Groups Seminar
4:00 PM
MSCS 509
The Nash blow-up of a cominuscule Schubert variety
Ed Richmond, OSU
[Abstract] [PDF]
Abstract: The Nash blow-up of an algebraic variety is defined to be the parameter space of tangent spaces over the smooth locus together with the limits of tangent spaces over the singular locus. One motivation for studying the Nash blow-up is that its tautological bundle serves as analogue of the tangent bundle for singular varieties. In this talk, I will discuss joint work with W. Slofstra and A. Woo where we compute the Nash blow-up of a cominuscule Schubert variety. Some consequences of our work include a new description of the smooth locus and a new formula for the Chern-Mather class of a Schubert variety.
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