Positive multi-peak solutions for a logarithmic Schrodinger equation

Abstract

In this manuscript, we consider the logarithmic Schrödinger equation \begin{eqnarray*} -\varepsilon^2Δu+V(x)u=u\log u^{2},\,\,\,u>0, & \text{in}\,\,\,\mathbb{R}^{N}, \end{eqnarray*} where $N\ge 3$, $\epsilon >0$ is a small parameter. Under some assumptions on $V(x)$, we show the existence of positive multi-peak solutions by Lyapunov-Schmidt reduction. It seems to be the first time to study singularly perturbed logarithmic Schrödinger problem by reduction. And here using a new norm is the crucial technique to overcome the difficulty caused by the logarithmic nonlinearity. At the same time, we consider the local uniqueness of the multi-peak solutions by using a type of local Pohozaev identities.

arXiv comment29

References in corpus (5)

• Logarithmic nonlinearity in theories of quantum gravity: Origin of time and observational consequences
• Spontaneous symmetry breaking and mass generation as built-in phenomena in logarithmic nonlinear quantum theory
• Existence and stability of standing waves for nonlinear fractional Schrödinger equation with logarithmic nonlinearity
• Orbital stability of Gausson solutions to logarithmic Schrödinger equations
• Uniqueness of positive solutions with Concentration for the Schrödinger-Newton problem