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JCT
2007
13 years 10 months ago
2007
We define a q generalization of weighted Catalan numbers studied by Postnikov and Sagan, and prove a result on the divisibility by p of such numbers when p is a prime and q its p...
CG
2005
Springer
13 years 9 months ago
2005
Springer
A new algorithm for Boolean operations on general planar polygons is presented. It is available for general planar polygons (manifold or non-manifold, with or without holes). Edge...
CORR
2002
Springer
13 years 9 months ago
2002
Springer
In this paper we study approximation algorithms for solving a general covering integer program. An
DM
2002
13 years 9 months ago
2002
A generalized p-cycle is a digraph whose set of vertices can be partitioned into p parts that are cyclically ordered in such a way that the vertices in one part are adjacent only ...
MOC
2002
13 years 9 months ago
2002
Numbers of the form Fb,n = b2n +1 are called Generalized Fermat Numbers (GFN). A computational method for testing the probable primality of