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math.AP2026

Normalized solutions to mass supercritical Schrödinger equations with radial potentials

P. Carrillo, L. Jeanjean

We study the stationary nonlinear Schrödinger equation \begin{equation}-Δu+V(x)u+λu=|u|^{q-2}u,\quad u \in H^1(\mathbb{R}^N), \quad N \geq 2\end{equation} where $V \in L^{\infty…

math.AP2025

Normalized solutions of -supercritical NLS equations on noncompact metric graphs

Simone Dovetta, Louis Jeanjean, Enrico Serra

We consider the existence of normalized solutions to nonlinear Schrödinger equations on noncompact metric graphs in the supercritical regime. For sufficiently small prescrib…

math.AP2025

Serrin-type Overdetermination in Scaling Limits: Sharp Existence and Asymptotic Behavior of Quasi-linear Schrödinger Energy Ground States

Louis Jeanjean, Jianjun Zhang, Xuexiu Zhong

This paper establishes optimal existence results and limiting profiles for energy ground states of the quasi-linear Schrödinger equation $$ -Δu - Δ(|u|^{2})u + λu = |u|^{p-2}u…

math.AP2024

Infinitely many normalized solutions of -supercritical NLS equations on noncompact metric graphs with localized nonlinearities

Pablo Carrillo, Damien Galant, Louis Jeanjean +1

We consider the existence of solutions for nonlinear Schrödinger equations on noncompact metric graphs with localized nonlinearities. In an -supercritical regime, we establis…

math.AP2024

Bounded Palais-Smale sequences with Morse type information for some constrained functionals

Jack Borthwick, Xiaojun Chang, Louis Jeanjean +1

In this paper, we study, for functionals having a mountain pass geometry on a constraint, the existence of bounded Palais-Smale sequences carrying Morse index type information.