Higher-order cauchy numbers and polynomials

Recently, Komatsu introduced the concept of poly-Cauchy numbers and polynomials which generalize Cauchy numbers and polynomials. In this paper, we consider the new concept of higher-order Cauchy numbers and polynomials which generalize Cauchy numbers and polynomials in different direction and investigate some properties of those new class of numbers and polynomials. From our investigation, we derive some identities involving higher-order Cauchy numbers and polynomials, which generalize some rela- tions between two kinds of Cauchy polynomials and some identities for Cauchy numbers and Stirling numbers.