Some combinatorial problems, connected with product-isomorphisms of binary relations
A. E. Kipiani (1988)
Acta Universitatis Carolinae. Mathematica et Physica
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Displaying similar documents to “On the selector of twin functions”
Some combinatorial problems, connected with product-isomorphisms of binary relations
The Subset P+ And P- Of The Split Interval
Ladislav Skula (1966)
Publications de l'Institut Mathématique
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Equivalent systems of sets and homeomorphic topologies
František Neuman, Milan Sekanina (1965)
Czechoslovak Mathematical Journal
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The Catalan Numbers. Part II 1
Karol Pąk (2006)
Formalized Mathematics
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In this paper, we define sequence dominated by 0, in which every initial fragment contains more zeroes than ones. If n ≥ 2 · m and n > 0, then the number of sequences dominated by 0 the length n including m of ones, is given by the formula [...] and satisfies the recurrence relation [...] Obviously, if n = 2 · m, then we obtain the recurrence relation for the Catalan numbers (starting from 0) [...] Using the above recurrence relation we can see that [...] where [...] and hence [...]...