Na-Na Shao, You-Wei Zhang
Abstract:
In this paper, we study the following semipositone
dynamic system on time scales
Using fixed point index theory, we show the existence of at
least one positive solution. The interesting point is the
that nonlinear term is allowed to change sign and may tend to
negative infinity.
Submitted April 8, 2008. Published August 20, 2008.
Math Subject Classifications: 34B15, 39A10
Key Words: Positive solution; semipositone dynamic system;
cone; fixed point index; time scales.
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Na-Na Shao School of Mathematics and Statistics, Lanzhou University Lanzhou, 730000, Gansu, China email: shaonn06@lzu.cn | |
You-Wei Zhang Department of Mathematics, Hexi University Zhangye, 734000, Gansu, China email: zhangyw05@lzu.cn |
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