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• W1839110117 abstract "We demonstrate existence of positive bound and ground states for a system of coupled nonlinear Schrodinger--Korteweg-de Vries equations. More precisely, we prove there is a positive radially symmetric ground state if either the coupling coefficient $beta>Lambda$ (for an appropriate constant $Lambda>0$) or $beta>0$ with appropriate conditions on the other parameters of the problem. Concerning bound states, we prove there exists a positive radially symmetric bound state if either $0<beta$ is sufficiently small or $0<beta<Lambda$ with some appropriate conditions on the parameters as for the ground states. That results give a classification of positive solutions as well as multiplicity of positive solutions. Furthermore, we consider a system with more general power nonlinearities, proving the above results, and also we study natural extended systems with more than two equations. Although the techniques we employed are variational, we look for critical points of an energy functional different from the classical one used in this kind of systems. Our approach improves many of the previous known results, as well as permit us to show new results not considered or studied before." @default.
• W1839110117 created "2016-06-24" @default.
• W1839110117 creator A5068100071 @default.
• W1839110117 date "2014-11-26" @default.
• W1839110117 modified "2023-09-27" @default.
• W1839110117 title "On the existence of bound and ground states for some coupled nonlinear Schrodinger--Korteweg-de Vries equations" @default.
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• W1839110117 hasPublicationYear "2014" @default.
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