A study of inverses of thinned renewal processes .

稀分更新过程之逆过程的探讨。

Co tant folding and co tant unfolding are inverses .

常数合并和常数展开是相反的。

It 's easy to tell whether these simpler matrices have banded inverses , and if they do , their combination will , too .

判断这些简单矩阵是否有带状逆阵要更容易，而如果它们有，那他们组合起来也会有。