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MR 2827979 Reviewed Lando, S. K. Hurwitz numbers: on the edge between combinatorics and geometry. Proceedings of the International Congress of Mathematicians, volume IV, 2010, 2444--2470. (Reviewer Francesca Vetro) 14N35 (05A15 14H10 14H30 37K20)

2012
Object of study in this paper are the Hurwitz numbers. They were introduced by Hurwitz in the end of nineteenth century and still they are of great interest. The Hurwitz numbers are important in topology because they enumerate ramified coverings of two-dimensional surfaces, but not only.
openaire   +1 more source

On some identities and generating functions for k- Pell numbers

, 2013
P. Catarino
semanticscholar   +1 more source

On Some Identities and Generating Functions for k-Pell-Lucas Sequence

, 2013
P. Catarino, P. Vasco
semanticscholar   +1 more source

Some basic properties and a two-by-two matrix involving the k-Pell numbers

, 2013
P. Catarino, P. Vasco
semanticscholar   +1 more source

Modified k-Pell sequence: some identities and ordinary generating function

, 2013
P. Catarino, P. Vasco
semanticscholar   +1 more source