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176
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COMBINATORICS
2004
15 years 3 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...
115
Voted
COMBINATORICS
2004
15 years 3 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...
128
Voted
COMBINATORICS
2004
15 years 3 months ago
2004
We study the distribution of the statistics `number of fixed points' and `number of excedances' in permutations avoiding subsets of patterns of length 3. We solve all th...
114
Voted
COMBINATORICS
2004
15 years 3 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...
108
Voted
COMBINATORICS
2004
15 years 3 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...