本文根据Poisson流形P的1-形式空间∧1(P)上的微缩算子η及其性质,给出了η代数胚的定义,进一步得到了微缩算子在η-代数胚及Poisson流形中的一些应用.
The definilion of η algebroid is offered by some properties about the differentiation contraction operator η in I form space ∧1 (P) on Poisson manifold P. ∧1 the same time.some applica-tions of the differentiation-contraction operator in η algebroid and Poisson manifold are obtained.