11949 search results - page 170 / 2390 » Some results on (a:b)-choosability |
JCT
2008
15 years 1 months ago
2008
: We prove that a small blocking set of PG(2, q) is "very close" to be a linear blocking set over some subfield GF(pe) < GF(q). This implies that (i) a similar result ...
108
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JCT
2008
15 years 1 months ago
2008
Let M denote the Laplacian matrix of a graph G. Associated with G is a finite group (G), obtained from the Smith normal form of M, and whose order is the number of spanning trees o...
CORR
2007
Springer
15 years 1 months ago
2007
Springer
We prove that the constraint languages invariant under a short sequence of J´onsson terms (containing at most three non-trivial ternary terms) are tractable by showing that they h...
106
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DM
2007
15 years 1 months ago
2007
In this paper, we obtain some new results R(5, 12) 848, R(5, 14) 1461, etc., and we obtain new upper bound formulas for Ramsey numbers with parameters. © 2006 Published by Elsevi...
ORL
2008
15 years 1 months ago
2008
We propose a method to calculate lower and upper bounds of some exponential multivariate integrals using moment relaxations and show that they asymptotically converge to the value...