二维狄拉克电子的简单解

二维电子由自旋为１／２的两维狄拉克方程所描述，并对二维氢原子的特例，我们得到了它的能量谱以及它的精细结构。

定序合作博弈:定义、解概念与实验检验

提出定序合作博弈定义,给出的一个解概念即最简单字典序解。通过一个经济学实验对最简单字典序解进行了实证分析。

转化是否等价?——对绝对值不等式|f(x)|>g(x),|f(x)|

本文是基于教材或资料书对于绝对值不等式|f(x)|>g(x),|f(x)|<g(x)的解只给出结果而没有证明过程,使得学生或教师对其等价性产生疑问,笔者根据"同解"原理,从"集合"的角度对其等价性给予证明,同时由于这种解法避免了分类讨论,因此用这种方法解题相对来说具有一定的优越性.

SOME RESULTS ON INFINITE DIMENSIONAL NOVIKOV ALGEBRAS

This paper gives some sufficient conditions for determining the simplicity of infinite di-mensional Novikov algebras of characteristic 0, and also constructs a class of simple Novikovalgebras by extending the base field. At last, the deformation theory of Novikov algebras isintroduced.

On the solutions of an oxygen absorption model

In this note we present the Adomian decomposition method for solving a simple model for the diffusion and absorption of oxygen in tissue. The method is examined for computational efficiency and accuracy.