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一类强交错扩散的捕食模型弱解的整体存在性
Global Existence of Weak Solutions to a Prey-Predator Model With Strong Cross-Diffusion
【摘要】 考虑一类带有强交错扩散项的捕食模型解的整体存在性.借助于有限差分方法和熵不等式的相关性质及结论,证明了在高维空间上,该问题有整体存在的弱解.此外,还说明了所得的这个弱解是非负解.
【Abstract】 By using finite differences and entropy inequalities,the global existence of weak solutions to a multidimensional parabolic strongly coupled prey-predator model is obtained.Furthermore,the non-negativity of such solution is also given.
【关键词】 捕食模型;
强交错扩散;
熵泛函;
弱解的存在性;
Orlicz空间;
【Key words】 prey-predator model; strong cross-diffusion; entropy functional; existence of weak solutions; Orlicz space;
【Key words】 prey-predator model; strong cross-diffusion; entropy functional; existence of weak solutions; Orlicz space;
【基金】 国家自然科学基金资助项目(1070102410601011)
- 【文献出处】 应用数学和力学 ,Applied Mathematics and Mechanics , 编辑部邮箱 ,2009年06期
- 【分类号】O175.26
- 【下载频次】74