| EXISTENCE OF NONNEGATIVE SOLUTIONS FOR DEGENERATE ECOLOGICAL MODELS |
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| 作者姓名： | ZHANGSHENGHAI |
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| 作者单位： | DepartmentofAppLiedMathematics,Xi＇anJiaotongUniversity,Xi＇an710049. |
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| 摘 要： | In this paper,nonnegative solutions for the degenerate elliptic systems are considered.First,nonnegative solutions for scalar equation with spatial discontinuities are studied. Then themethod developed for scalar equation is applied to study elliptic systems. At last,the existence criteria of nonnegative solutions of elliptic systems are given.
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| 关 键 词： | 存在性 非负解 生态学模型 椭圆型递减方程 |
| 收稿时间： | 3 March 1997 |
Existence of nonnegative solutions for degenerate ecological models |
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| ZHANGSHENGHAI.EXISTENCE OF NONNEGATIVE SOLUTIONS FOR DEGENERATE ECOLOGICAL MODELS[J].Applied Mathematics A Journal of Chinese Universities,1998,13(1):8-14. |
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| Authors: | Zhang Shenghai |
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| Institution: | ZHANG SHENGHAI |
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| Abstract: | In this paper,nonnegative solutions for the degenerate elliptic systems are considered.First,nonnegative solutions for scalar equation with spatial discontinuities are studied.Then the method developed for scalar equation is applied to study elliptic systems.At last,the existence criteria of nonnegative solutions of elliptic systems are given. |
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| Keywords: | Nonnegative solution elliptic systems ecological models |
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