An approximate analytical solution of moving boundary problem for diffusion release of drug from a cylinder polymeric matrix was obtained by use of refined inte
By applying the technique of continuous partition of unity and Tychonoff's fixed point theorem, some new collectively fixed point theorems for a family of s
This paper elucidates the effectiveness of combining the Poincare-Lighthill-Kuo method( PLK method, for short) and symbolic computation. Firstly, the idea and h