“新知旧题”和“新题旧知”在大学数学课程教学中的应用

基于新知识的学习和具体的教学过程,通过不同大学数学课程中的几个例子,结合具体的教学设计,阐述了利用"新知识求解旧习题"和"旧知识求解新习题"在大学数学类课程教学中的实际应用.该方法在教学中的灵活应用能帮助学生很好地掌握新知识、巩固已学知识、培养思维灵活性;并能够锻炼学生解决实际问题时发散思维、多角度进行思考的能力.     

与Gauss测度有关的椭圆方程比较结果中等号成立的条件

In this paper, we deal with a Dirichlet problem for linear elliptic equations related to Gauss measure. For this problem, we study the converse of some inequalities proved by other authors, in the sense that we study the case of equalities and show that equalities are achieved only in the ＂symmetrized＂ situations. In addition, under other assumptions, we give a different form of comparison results and discuss the corresponding case of equalities.