Connected components in the intersection of two open opposite Schubert cells in SLn(R)/B
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چکیده
In this paper we reduce the problem concerning the number of connected components in the intersection of two real opposite open Schubert cells in SLn(R)/B to a purely combinatorial question in the space of upper triangular matrices with F2-valued entries. The crucial step of the reduction uses the parametrization of the space of real unipotent totally positive upper triangular matrices introduced in [L] and [BFZ]. §
منابع مشابه
Connected Components in the Intersection of Two Open Opposite Schubert Cells in SLn
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تاریخ انتشار 1997