the National Natural Science Foundation of China (10371105).
The multiple vector-valued wavelet packets are defined and investigated. A procedure for constructing the multiple vector-valued wavelet packets is presented. The properties of multiple vector-valued wavelet packets a...
Supported by the NSF of China(10371105); Supported by the Youth Science Foundation of Xinyang Normal University(20060202)
A simple SI epidemic model with age of vaccination is discussed in this paper.Both vexing birth rate, the mortality rate caused by disease and vaccine waning rate areconsidered in this model. We prove that the global ...
This work is supported by National Natural Science Foundation of China (10371105) and the NSF of Henan Province (031000)
In this paper, we establish a mathematical model of two species with stage structure and the relation of predator-prey, to obtain conditions that determine the stability of the populations. By the application of compa...
Supported by the Natural Science Foundation of Henan Province(No.0312002000 and No.0211044800);the National Natural Science Foundation of China(No.10371105).
An age-structured SEIR epidemic model of a vertically as well as horizontally transmitted disease is investigated. Threshold results for the existence of endemic states are established for most cases. Under certain co...