Combinatorial identities.(English)Zbl 0194.00502

New York-London-Sydney: John Wiley and Sons, Inc. xii, 256 p. (1968).

MathOverflow Questions:

Finding f such that f(f(x))=g(x) given g

MSC:

 05A19 Combinatorial identities, bijective combinatorics 05-01 Introductory exposition (textbooks, tutorial papers, etc.) pertaining to combinatorics 05A10 Factorials, binomial coefficients, combinatorial functions 05A15 Exact enumeration problems, generating functions 11B65 Binomial coefficients; factorials; $$q$$-identities 11B68 Bernoulli and Euler numbers and polynomials 11B73 Bell and Stirling numbers 33C45 Orthogonal polynomials and functions of hypergeometric type (Jacobi, Laguerre, Hermite, Askey scheme, etc.)

combinatorics