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JCT
2007
65views more  JCT 2007»
14 years 11 months ago
Paths with two blocks in n-chromatic digraphs
Louigi Addario-Berry, Frédéric Havet...
JCT
2007
67views more  JCT 2007»
14 years 11 months ago
Extreme eigenvalues of nonregular graphs
Sebastian M. Cioaba, David A. Gregory, Vladimir Ni...
JCT
2007
76views more  JCT 2007»
14 years 11 months ago
The branchwidth of graphs and their cycle matroids
Illya V. Hicks, Nolan B. McMurray Jr.
JCT
2007
62views more  JCT 2007»
14 years 11 months ago
Integer and fractional packings of hypergraphs
Vojtech Rödl, Mathias Schacht, Mark H. Sigger...
JCT
2007
71views more  JCT 2007»
14 years 11 months ago
Divisibility of generalized Catalan numbers
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...
Matjaz Konvalinka