由介绍 noncommutative 在无限 / 有限的集合和构造的函数空格的微分演算一个 homotopy 操作符，一个证明 Poincar 的类似物？？......

We investigate the effect of the noncommutative geometry on the classical orbits of particles in a central force potenti......

We study the Dirac and the Klein-Gordon oscillators in a noncommutative space. It is shown that the Klein-Gordon oscilla......