Ground state solutions to nonlinear equations with p-Laplacian

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Authors

DOŠLÁ Zuzana MATUCCI Serena

Year of publication 2019
Type Article in Periodical
Magazine / Source NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS
MU Faculty or unit

Faculty of Science

Citation
Web https://www.sciencedirect.com/science/article/pii/S0362546X19300410
Doi http://dx.doi.org/10.1016/j.na.2019.01.032
Keywords Second order nonlinear differential equation; Ground state solution; Boundary value problem on the half-line
Description We investigate the existence of positive radial solutions for a nonlinear elliptic equation with p-Laplace operator and sign-changing weight, both in superlinear and sublinear case. We prove the existence of solutions u, which are globally defined and positive outside a ball of radius R, satisfy fixed initial conditions u(R) = c > 0, u' (R) = 0 and tend to zero at infinity. Our method is based on a fixed point result for boundary value problems on noncompact intervals and on asymptotic properties of suitable auxiliary half-linear differential equations. The results are new also for the classical Laplace operator and may be used for proving the existence of ground state solutions and decaying solutions with exactly k-zeros which are defined in the whole space. Some examples illustrate our results.
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