492 search results - page 69 / 99 » combinatorics 2006 |
COMBINATORICS
2004
14 years 9 months ago
2004
Abstract. We use the theory of hyperplane arrangements to construct natural bases for the homology of partition lattices of types A, B and D. This extends and explains the "sp...
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COMBINATORICS
2004
14 years 9 months ago
2004
We consider Class-Uniformly Resolvable frames (CURFs), which are group divisible designs with partial resolution classes subject to the class-uniform condition. We derive the nece...
COMBINATORICS
2004
14 years 9 months ago
2004
Characteristic polynomials of random unitary matrices have been intensively studied in recent years: by number theorists in connection with Riemann zetafunction, and by theoretica...
COMBINATORICS
2004
14 years 9 months ago
2004
The basic functional equations for connected and 2-connnected graphs can be traced back to the statistical physicists Mayer and Husimi. They play an essential role in establishing...
COMBINATORICS
2004
14 years 9 months ago
2004
This paper deals with evaluating constant terms of a special class of rational functions, the Elliott-rational functions. The constant term of such a function can be read off immed...