365 search results - page 8 / 73 » On the combinatorics of Galois numbers |
ANTS
2004
Springer
15 years 5 months ago
2004
Springer
We compute all nonic extensions of Q3 and find that there are 795 of them up to isomorphism. We describe how to compute the associated Galois group of such a field, and also the ...
COMBINATORICS
2004
14 years 11 months ago
2004
Let G be the intersection graph of a finite family of convex sets obtained by translations of a fixed convex set in the plane. We show that every such graph with clique number k i...
COMBINATORICS
2002
14 years 11 months ago
2002
The n-th Heilbronn number, Hn, is the largest value such that n points can be placed in the unit square in such a way that all possible triangles defined by any three of the point...
102
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COMBINATORICS
2002
14 years 11 months ago
2002
We investigate the numbers dk of all (isomorphism classes of) distributive lattices with k elements, or, equivalently, of (unlabeled) posets with k antichains. Closely related and...
COMBINATORICS
2000
14 years 11 months ago
2000
Abstract. We introduce color-signed permutations to obtain a very explicit combinatorial interpretation of the q-Eulerian identities of Brenti and some generalizations. In particul...