ANALOGUES OF CYCLIC INSERTION-TYPE IDENTITIES FOR MULTIPLE ZETA STAR VALUES

Abstract

We prove an identity for multiple zeta star values, which generalises some identities due to Imatomi, Tanaka, Tasaka and Wakabayashi. This identity gives an analogue of cyclic insertion type identities, for multiple zeta star values, and connects the block decomposition with Zhao's generalised 2-1 formula.