Concavity properties for certain linear combinations of Stirling numbers
Concavity properties for certain linear combinations of Stirling numbers
In the notation of Riordan ([5], p. 33), the Stirling numbers, s(n, k) and S(n, k) , of the first and second kind respectively are defined by the relation where (x) n = x(x − 1) … (x − n + 1) is the factorial power function. They have been …