2 Sergey Fomin and Andrei Zelevinsky
نویسندگان
چکیده
1. Introduction This paper focuses on the properties of Schubert cells as quasi-projective subva-rieties of a generalized ag variety. More speciically, we investigate the problem of distinguishing between diierent Schubert cells using vanishing patterns of generalized Pl ucker coordinates.
منابع مشابه
Sergey Fomin and Andrei Zelevinsky
In an attempt to create an algebraic framework for dual canonical bases and total positivity in semisimple groups, we initiate the study of a new class of commutative algebras.
متن کامل2 SERGEY FOMIN AND ANDREI ZELEVINSKYin
1. Introduction This paper focuses on the properties of Schubert cells as semialgebraic subsets of a generalized ag variety. More speciically, we investigate the problem of distinguishing between diierent Schubert cells using vanishing patterns of generalized Pl ucker coordinates.
متن کامل. R T ] 1 4 M ay 2 00 2 GENERALIZED ASSOCIAHEDRA VIA QUIVER REPRESENTATIONS
We provide a quiver-theoretic interpretation of certain smooth complete simplicial fans associated to arbitrary finite root systems in recent work of S. Fomin and A. Zelevinsky. The main properties of these fans then become easy consequences of the known facts about tilting modules due to K. Bongartz, D. Happel and C. M. Ringel.
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