Journal of the Chungcheong Mathematical Society (충청수학회지)
- Volume 13 Issue 1
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- Pages.119-130
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- 2000
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- 1226-3524(pISSN)
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- 2383-6245(eISSN)
ALTERNATIVE PROOF OF EXISTENCE THEOREM FOR CERTAIN COMPETITION MODELS
- Ahn, Inkyung (Department of Mathematics Korea University)
- Received : 2000.05.01
- Published : 2000.06.30
Abstract
We give alternative proof of the existence theorem for certain elliptic systems describing competing interactions with nonlinear di usion. The existence of positive solution depends on the sign of the principal eigenvalue of suitable operators of Schr