当H是半单的Hopf代数及其对偶H~＊是幺模的Hopf代数时,通过构造可分扩张A~＊H/A,利用比较法得到了扭曲冲积A~＊H的整体维数、弱维数和有......

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In this paper we show how the transformations associated with the reduction to the Smith form of some classes of mul-tiv......

In this study we discuss the use of the simplex method to solve allocation problems whose flow matrices are doubly stoch......

The question of the averaging of inhomogeneous spacetimes in cosmology is important for the correct interpretation of co......