Browsing FAS Scholarly Articles by Keyword "Eulerian numbers"
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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 ...