86 search results - page 3 / 18 » Combinatorics of generalized q-Euler numbers |
MFCS
2004
Springer
13 years 11 months ago
2004
Springer
Brandenburg and (implicitly) Dejean introduced the concept of repetition threshold: the smallest real number α such that there exists an infinite word over a k-letter alphabet t...
COMBINATORICS
1999
13 years 5 months ago
1999
We find, in the form of a continued fraction, the generating function for the number of (132)-avoiding permutations that have a given number of (123) patterns, and show how to ext...
COMBINATORICS
2004
13 years 5 months ago
2004
We consider Class-Uniformly Resolvable Group Divisible Designs (CURGDD), which are resolvable group divisible designs in which each of the resolution classes has the same number o...
COMPGEOM
2004
ACM
13 years 11 months ago
2004
ACM
We prove that the lines tangent to four possibly intersecting convex polyhedra in 3 with n edges in total form Θ(n2 ) connected components in the worst case. In the generic ca...
COMBINATORICS
1999
13 years 5 months ago
1999
In this article we use two different methods to find new lower bounds for some multicolored Ramsey numbers. In the first part we use the finite field method used by Greenwood and ...