关于完全单Γ－半群

本文给出了单Γ－半群、完全单Γ－半群的实质刻画，揭示了单Γ－半群、完全单Γ－半群的单性，完全单性由它们的任一个相关半群决定的性质。     

纯量矩阵的交换性准则

本文证明了,若一个 n 阶矩阵 X 与 F_n 的一个 n~2-2n 3维子代数可交换,则 X一定是纯量矩阵。     

A New Device Concept of Magnetic Confinement Deuterium–Deuterium Fusion

A two-stage cascade magnetic compression scheme based on field reversed configuration plasma is proposed.The temperature and density of plasma before and after magnetic compression are analyzed. In addition, the suppression of the two-fluid effect and the finite Larmor radius effect on the tilting mode and the rotating mode of major magnetic hydrodynamic instability is studied, and finally, the key physical and engineering parameters of the deuterium–deuterium fusion pulse device are introduced....