浅谈文科高等数学的教学

本文探讨了在大学文科高等数学教学中 ,教师要重视数学文化的传播、注意改进教学方式 ,以及教师自身应具有高度的责任心等几方面的教学体会。

实直线上的分形维数

利用B.Mandelbrot对空间分形维数的定义,讨论实直线上任意点的ε-邻域与无穷大区间2种特殊情况下的分形维数,得出0<D(Iε)<1,1<D(I∞)<2的结论。

A NOTE ON GLOBAL ATTRACTIVITY OF THE MODEL FOR THE SURVIVAL OF THE RED BLOOD CEELS WITH SEVERAL DELAYS

This note considers the model for the survival of the red blood ceels with several delays and establishes some new sufficient conditions which guarantee the positive equilibrium of the model being a global attractor. Our results generalize and improve the corre-spondently known results obtained in [1, 3], and solve a conjecture in [7].