Opuscula Math. 34, no. 4 (2014), 725-732
http://dx.doi.org/10.7494/OpMath.2014.34.4.725

 
Opuscula Mathematica

On a new critical point theorem and some applications to discrete equations

Marek Galewski
Elżbieta Galewska

Abstract. Using the Fenchel-Young duality we derive a new critical point theorem. We illustrate our results with solvability for certain discrete BVP. Multiple solutions are also considered.

Keywords: critical point, multiplicity, discrete equation, Fenchel-Young transform.

Mathematics Subject Classification: 49J27, 39A12, 39A10.

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Cite this article as:
Marek Galewski, Elżbieta Galewska, On a new critical point theorem and some applications to discrete equations, Opuscula Math. 34, no. 4 (2014), 725-732, http://dx.doi.org/10.7494/OpMath.2014.34.4.725

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