108 search results - page 6 / 22 » Types for Hereditary Permutators |
DAGSTUHL
2003
13 years 8 months ago
2003
Abstract. Kummer type formulas are identities of hypergeometric series. A symmetry by the permutations of n-letters yields these formulas. We will present an algorithmic method to ...
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JCT
2000
13 years 7 months ago
2000
Generalizing the notion of placing rooks on a Ferrers board leads to a new class of combinatorial models and a new class of rook polynomials. Connections are establishedwith absolu...
ITP
2010
13 years 11 months ago
2010
Pitts et al introduced a beautiful theory about names and binding based on the notions of permutation and support. The engineering challenge is to smoothly adapt this theory to a t...
ACL
2011
12 years 11 months ago
2011
We present a novel model to represent and assess the discourse coherence of text. Our model assumes that coherent text implicitly favors certain types of discourse relation transi...
COMBINATORICS
2006
13 years 7 months ago
2006
In [5] the authors refine the well-known permutation statistic "descent" by fixing parity of one of the descent's numbers. In this paper, we generalize the results o...