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Article
On the reducibility of characteristic varieties
Proceedings of the American Mathematical Society
(2002)
Abstract
We show that some monodromies in the Morse local systems of a conically stratified perverse sheaf imply that other Morse local systems for smaller strata do not vanish. This result is then used to explain the examples of reducible characteristic varieties of Schubert varieties given by Kashiwara and Saito in type A and by Boe and Fu for the Lagrangian Grassmannian.
Disciplines
Publication Date
2002
Citation Information
Tom Braden. "On the reducibility of characteristic varieties" Proceedings of the American Mathematical Society Vol. 130 Iss. 7 (2002) Available at: http://works.bepress.com/tom_braden/2/