Superlinear discrete problems |
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| Affiliation: | 1. Department of Civil, Computer, Construction, Environmental Engineering and Applied Mathematics, University of Messina, 98166 - Messina, Italy;2. Department of Mathematics, West University of Timişoara, 4, Blvd. V. Pârvan 300223 - Timişoara, Romania |
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| Abstract: | The aim of this paper is to present an existence result of two positive solutions for a nonlinear difference problem by variational methods. The conclusion is achieved by assuming, together with the super-linearity at infinity, a suitable algebraic condition on the nonlinear term, which is more general than the sub-linearity at zero. |
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| Keywords: | Difference equations Multiplicity results Variational methods |
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