Supported by the National Natural Science Foundation of China (No.10171099)
In this paper, by using a variation of the Chebyshev's method, we present a very simple, elementary proof of an inequality which has applications in number theory.
the National Nature Science Foundation of China (Grant No.10171099).
The effect of dispersal on the permanence of population in a polluted patch is studied in this paper. The authors constructed a single-species dispersal model with stage-structure in two patches. The analysis focuses ...