摘要 : We will give an efficient bimodule projective resolution of air order Gamma, where Gamma is art order of a simple component of the rational group ring QQ(2r) of the generalized quaternion 2-group Q(2r) of order 2(r+2). Moreover, w... 展开 We will give an efficient bimodule projective resolution of air order Gamma, where Gamma is art order of a simple component of the rational group ring QQ(2r) of the generalized quaternion 2-group Q(2r) of order 2(r+2). Moreover, we will determine the ring structure of the Hochschild cohomology HH*(Gamma) by calculating the Yoneda products using this bimodule projective resolution. 收起