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This paper focuses on the existence of multiple normalized solutions to Schr\"{o}dinger equations with general nonlinearities in bounded domains via variational methods. We first obtain two positive normalized solutions, one is a normalized…

Analysis of PDEs · Mathematics 2025-06-19 Wei Ji

We investigate the existence, non-existence, and multiplicity of positive solutions to a class of quasilinear Schrodinger equations with a prescribed mass condition in higher dimensions. Using the dual approach, the equation is transformed…

Analysis of PDEs · Mathematics 2024-11-26 Ayesha Baig , Li Zhouxin

In this paper, we consider the existence and multiplicity of prescribed mass solutions to the following nonlinear Schr\"{o}dinger equation with general nonlinearity: Mass super-critical case: \[\begin{cases} -\Delta u+V(x)u+\lambda…

Analysis of PDEs · Mathematics 2025-01-10 Xiaolu Lin , Zongyan Lv

In this paper, we consider the existence and multiplicity of prescribed mass solutions to the following nonlinear Schrodinger equations with mixed nonlinearities. The standard approach based on the Pohozaev identity to obtain normalized…

Analysis of PDEs · Mathematics 2025-01-06 Xiaolu Lin , Yanjun Liu , Zongyan Lv

A class of generalized Schr\"{o}dinger problems in bounded domain is studied. A complete overview of the set of solutions is provided, depending on the values assumed by parameters involved in the problem. In order to obtain the results, we…

Analysis of PDEs · Mathematics 2018-10-25 Andrelino V. Santos , João R. Santos Júnior , Antonio Suárez

We prove global existence and stability of solution to the mass-critical stochastic nonlinear Schr\"odinger equation in $d=1$ at $L^2$ regularity. Our construction starts with the existence of solution to the truncated subcritical problem.…

Analysis of PDEs · Mathematics 2022-02-09 Chenjie Fan , Weijun Xu

We study the existence, non-existence and multiplicity of prescribed mass positive solutions to a Schr\"odinger equation of the form \begin{equation*} -\Delta u+\lambda u=g(u), \quad u \in H^1(\mathbb{R}^N), \, N \geq 1. \end{equation*} Our…

Analysis of PDEs · Mathematics 2023-11-15 Louis Jeanjean , Jianjun Zhang , Xuexiu Zhong

In this paper we are concerned with the existence of normalized solutions for nonlinear Schr\"odinger equations on noncompact metric graphs with localized nonlinearities. In a $L^2$-supercritical regime, we obtain the existence of solutions…

Analysis of PDEs · Mathematics 2023-06-21 Jack Borthwick , Xiaojun Chang , Louis Jeanjean , Nicola Soave

The purpose of this article is to construct global solutions, in a probabilistic sense, for the nonlinear Schr{\"o}dinger equation posed on $\mathbb{R}^d$, in a supercritical regime. Firstly, we establish Bourgain type bilinear estimates…

Analysis of PDEs · Mathematics 2023-04-24 Nicolas Burq , Aurélien Poiret , Laurent Thomann

We consider the existence of solutions for nonlinear Schr\"odinger equations on noncompact metric graphs with localized nonlinearities. In an $L^2$-supercritical regime, we establish the existence of infinitely many solutions for any…

Analysis of PDEs · Mathematics 2024-12-17 Pablo Carrillo , Damien Galant , Louis Jeanjean , Christophe Troestler

The aim of this work is the study of the existence of normalized solutions to the nonlinear Schr\"odinger equation with nonlocal nonlinearities: \begin{equation}\nonumber \left\{\begin{aligned} &-\Delta u =\lambda…

Analysis of PDEs · Mathematics 2025-06-26 Ru Yan

The paper addresses an open problem raised in [Bartsch, Molle, Rizzi, Verzini: Normalized solutions of mass supercritical Schr\"odinger equations with potential, Comm. Part. Diff. Equ. 46 (2021), 1729-1756] on the existence of normalized…

Analysis of PDEs · Mathematics 2023-06-14 Thomas Bartsch , Shijie Qi , Wenming Zou

We analyze $L^2$-normalized solutions of nonlinear Schr\"odinger systems of Gross-Pitaevskii type, on bounded domains, with homogeneous Dirichlet boundary conditions. We provide sufficient conditions for the existence of orbitally stable…

Analysis of PDEs · Mathematics 2019-03-27 Benedetta Noris , Hugo Tavares , Gianmaria Verzini

We consider the existence of stationary wave solutions with prescribed mass to a supercritical nonlinear Schr{\"o}dinger equation on a noncompact connected metric graph without a small mass assumption.

Analysis of PDEs · Mathematics 2025-04-02 Nabile Boussaïd , Jack Borthwick

We prove the global existence of solution to the small data mass critical stochastic nonlinear Schr\"{o}dinger equation in $d=1$. We further show the stability of the solution under perturbation of initial data. Our construction starts with…

Probability · Mathematics 2018-08-27 Chenjie Fan , Weijun Xu

In this paper, we study normalized solutions to the Chern-Simons-Schr\"odinger system, which is a gauge-covariant nonlinear Sch\"oridnger system with a long-range electromagnetic field, arising in nonrelativistic quantum mechanics theory.…

Analysis of PDEs · Mathematics 2020-12-21 Tianxiang Gou , Zhitao Zhang

In this paper, we consider the existence, orbital stability/instability and regularity of bound state solutions to nonlinear Schr\"odinger equations with super-quadratic confinement in two and three spatial dimensions for the mass…

Analysis of PDEs · Mathematics 2025-10-14 Tianxiang Gou , Xiaoan Shen

We consider the existence of normalized solutions to nonlinear Schr\"odinger equations on noncompact metric graphs in the $L^2$ supercritical regime. For sufficiently small prescribed mass ($L^2$ norm), we prove existence of positive…

Analysis of PDEs · Mathematics 2025-04-02 Simone Dovetta , Louis Jeanjean , Enrico Serra

This work examines a quasilinear Schr\"odinger-Poisson system involving a critical nonlinearity, expressed as \[ -\Delta u + \phi u + \lambda u = |u|^{q-2} u + |u|^4 u, \quad x \in \Omega_r, \] \[ -\Delta \phi - \varepsilon^4 \Delta_4 \phi…

Analysis of PDEs · Mathematics 2026-02-17 Li Chen , Li Wang

We are concerned with the nonlinear Schr\"odinger equation with an $L^2$ mass constraint on both finite and locally finite graphs and prove that the equation has a normalized solution by employing variational methods. We also pay attention…

Analysis of PDEs · Mathematics 2023-02-27 Yunyan Yang , Liang Zhao
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