Articles with "phi laplacian" as a keyword



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Positive solutions to semi-positone fourth-order $$\phi $$ϕ-Laplacian BVPs

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Published in 2017 at "Positivity"

DOI: 10.1007/s11117-016-0415-3

Abstract: This work is devoted to proving existence of positive solutions to a fourth-order semipositone $$\phi $$ϕ-Laplacian boundary problem. The nonlinearity may have time-singularity and change sign. Existence results are proved using the Krasnosel’skii and the… read more here.

Keywords: fourth order; positive solutions; phi laplacian; solutions semi ... See more keywords
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Compression–Expansion Fixed Point Theorems for Decomposable Maps and Applications to Discontinuous $$\phi $$-Laplacian problems

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Published in 2021 at "Qualitative Theory of Dynamical Systems"

DOI: 10.1007/s12346-021-00505-6

Abstract: In this paper, we prove new compression–expansion type fixed point theorems in cones for the so-called decomposable maps, that is, compositions of two upper semicontinuous multivalued maps. As an application, we obtain existence and localization… read more here.

Keywords: fixed point; decomposable maps; point theorems; point ... See more keywords