Existence and L∞ estimates of some Mountain-Pass type solutions
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Revised: 29 March 2007
We prove the existence of a positive solution to the BVP imposing some conditions on Φ and f. In particular, we assume to be decreasing in t. Our method combines variational and topological arguments and can be applied to some elliptic problems in annular domains. An bound for the solution is provided by the norm of any test function with negative energy.
Mathematics Subject Classification: 34B18 / 34C11
Key words: Second order singular differential equation / variational methods / Mountain Pass Theorem
© EDP Sciences, SMAI, 2009