Results 151 to 160 of about 208 (162)
Enumeration of compact coalescent histories for matching gene trees and species trees. [PDF]
J Math Biol, 2019 Disanto F, Rosenberg NA.
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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.
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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
Graphs, quasisymmetry and permutations with restricted positions
Duke Mathematical Journal, 1974D P Roselle
exaly
Enumeration of permutations and sequences with restrictions
Duke Mathematical Journal, 1973Richard Scoville
exaly
A Dirichlet analogue of the free monogenic inverse semigroup via Möbius inversion
Rocky Mountain Journal of Mathematics, 2011Emil Daniel Schwab
exaly
Enumeration of sequences by rises and falls: a refinement of the Simon Newcomb problem
Duke Mathematical Journal, 1972exaly
On the number of distinguished representations of a group element
Duke Mathematical Journal, 1972exaly