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• #### Enumeration of Totally Positive Grassmann Cells ﻿

(Elsevier Science B.V. Amsterdam, 2005)
Postnikov (Webs in totally positive Grassmann cells, in preparation) has given a combinatorially explicit cell decomposition of the totally nonnegative part of a Grassmannian, denoted $Gr_{kn ^+}$ and showed that this ...