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math.CO2003★ 2 cited
Tamari lattices and noncrossing partitions in type B and beyond
Hugh Thomas
The usual, or type A_n, Tamari lattice is a partial order on T_n^A, the triangulations of an (n+3)-gon. We define a partial order on T_n^B, the set of centrally symmetric triangula…
math.CO2003
The number of terms in the permanent and the determinant of a generic circulant matrix
Hugh Thomas
Let A=(a_(ij)) be the generic n by n circulant matrix given by a_(ij)=x_(i+j), with subscripts on x interpreted mod n. Define d(n) (resp. p(n)) to be the number of terms in the det…