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math.CO2002
Recent developments in algebraic combinatorics
Richard P. Stanley
A survey of three recent developments in algebraic combinatorics: (1) the Laurent phenomenon, (2) Gromov-Witten invariants and toric Schur functions, and (3) toric h-vectors and in…
math.CO2002★ 10 cited
Some remarks on sign-balanced and maj-balanced posets
Richard P. Stanley
Let P be a poset with elements 1,2,...,n. We say that P is sign-balanced if exactly half the linear extensions of P (regarded as permutations of 1,2,...,n) are even permutations, i…