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- W2951173598 abstract "Alternating sign matrices (ASMs) are square matrices with entries 0, 1, or -1 whose rows and columns sum to 1 and whose nonzero entries alternate in sign. We present a unifying perspective on ASMs and other combinatorial objects by studying a certain tetrahedral poset and its subposets. We prove the order ideals of these subposets are in bijection with a variety of interesting combinatorial objects, including ASMs, totally symmetric self-complementary plane partitions (TSSCPPs), staircase shaped semistandard Young tableaux, Catalan objects, tournaments, and totally symmetric plane partitions. We prove product formulas counting these order ideals and give the rank generating function of some of the corresponding lattices of order ideals. We also prove an expansion of the tournament generating function as a sum over TSSCPPs. This result is analogous to a result of Robbins and Rumsey expanding the tournament generating function as a sum over alternating sign matrices." @default.
- W2951173598 created "2019-06-27" @default.
- W2951173598 creator A5021114840 @default.
- W2951173598 date "2014-08-22" @default.
- W2951173598 modified "2023-09-27" @default.
- W2951173598 title "A unifying poset perspective on alternating sign matrices, plane partitions, Catalan objects, tournaments, and tableaux" @default.
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