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We study the Cauchy problem for the cubic fractional nonlinear Schr\"odinger equation (fNLS) on the real line and on the circle. In particular, we prove global well-posedness of the cubic fNLS with all orders of dispersion higher than the…

偏微分方程分析 · 数学 2023-11-23 Enguerrand Brun , Guopeng Li , Ruoyuan Liu , Younes Zine

We study the Cauchy problem for a system of semi-linear coupled fractional-diffusion equations with polynomial nonlinearities posed in $% \mathbb{R}_{+}\times \mathbb{R}^{N}$. Under appropriate conditions on the exponents and the orders of…

偏微分方程分析 · 数学 2020-09-22 A. Bashir , A. Alsaedi , M. Berbiche , M Kirane

We study the global well-posedness of the two-dimensional defocusing fourth-order Schr\"odinger initial value problem with power type nonlinearities $\vert u\vert^{2k}u$ where $k$ is a positive integer. By using the $I$-method, we prove…

偏微分方程分析 · 数学 2023-08-14 Engin Başakoğlu , Barış Yeşiloğlu , Oğuz Yılmaz

This paper investigates the initial boundary value problem for a fractional pseudo-parabolic equation with singular potential. The global existence and blow-up of solutions to the initial boundary value problem are obtained at low initial…

最优化与控制 · 数学 2025-04-14 Xiang-kun Shao , Nan-jing Huang , Xue-song Li

This paper is concerned with the Cauchy problem of the $2$D Zakharov-Kuznetsov equation. We prove bilinear estimates which imply local in time well-posedness in the Sobolev space $H^s({\mathbb{R}}^2)$ for $s > -1/4$, and these are optimal…

偏微分方程分析 · 数学 2020-10-23 Shinya Kinoshita

We present sufficient conditions for the existence of positive solutions for a class of fractional singular boundary value problems in presence of Caputo fractional derivative. Further, the nonlinearity involved has singularity with respect…

经典分析与常微分方程 · 数学 2019-03-05 Naseer Ahmad Asif

We study the well-posedness for initial boundary value problems associated with time fractional diffusion equations with non-homogenous boundary and initial values. We consider both weak and strong solutions for the problems. For weak…

偏微分方程分析 · 数学 2020-04-30 Yavar Kian , Masahiro Yamamoto

We study the local and global wellposedness of the initial-boundary value problem for the biharmonic Schr\"odinger equation on the half-line with inhomogeneous Dirichlet-Neumann boundary data. First, we obtain a representation formula for…

偏微分方程分析 · 数学 2019-02-08 Türker Özsarı , Nermin Yolcu

We study the Cauhcy problem for space-time fractional nonlinear Schr\"odinger equation with a general nonlinearity. We prove the local well-posedness of it in fractional Sobolev spaces based on the decay estimates and H\"older type…

偏微分方程分析 · 数学 2024-07-02 Mingxuan He , Na Deng , Lu Zhang

In this work we prove local and global well-posedness results for the Cauchy problem of a family of regularized nonlinear Benjamin-type equations in both periodic and nonperiodic Sobolev spaces.

This paper is devoted to study a fractional Choquard problem with slightly subcritical exponents on bounded domains. When the exponent of the convolution type nonlinearity tends to the fractional critical one in the sense of…

偏微分方程分析 · 数学 2023-02-07 Marco G. Ghimenti , Min Liu , Zhongwei Tang

In this paper, we study the existence, regularity, and approximation of the solution for a class of nonlinear fractional differential equations. {In order to do this}, suitable variational formulations are defined for a nonlinear boundary…

数值分析 · 数学 2020-10-27 Khadijeh Nedaiasl , Raziyeh Dehbozorgi

This article is devoted to a general class of one dimensional NLS problems with a cubic nonlinearity. The question of obtaining scattering, global in time solutions for such problems has attracted a lot of attention in recent years, and…

偏微分方程分析 · 数学 2023-10-30 Mihaela Ifrim , Daniel Tataru

A semilinear initial-boundary value problem with a Caputo time derivative of fractional order $\alpha\in(0,1)$ is considered, solutions of which typically exhibit a singular behaviour at an initial time. For L1-type discretizations of this…

数值分析 · 数学 2022-08-12 Natalia Kopteva

We study well-posedness of a first-order-in-time model for nonlinear acoustics with nonhomogeneous boundary conditions in fractional Sobolev spaces. The analysis proceeds by first establishing well-posedness of an abstract parabolic-type…

偏微分方程分析 · 数学 2026-01-19 Pascal Lehner

In this work we investigate a boundary problem with non-local conditions for mixed parabolic-hyperbolic type equation with three lines of type-changing with Caputo fractional derivative in the parabolic part. We equivalently reduce…

偏微分方程分析 · 数学 2015-07-07 E. T. Karimov , A. S. Berdyshev , N. A. Rakhmatullaeva

This paper is aimed to establish well-posedness in several settings for the Cauchy problem associated to a model arising in the study of capillary-gravity flows. More precisely, we determinate local well-posedness conclusions in classical…

偏微分方程分析 · 数学 2020-05-21 Oscar Riaño

In this paper, we consider the Cauchy problem of the cubic nonlinear Schr\"{o}dinger equation with derivative in $H^s(\R)$. This equation was known to be the local well-posedness for $s\geq \frac12$ (Takaoka,1999), ill-posedness for…

偏微分方程分析 · 数学 2011-08-02 Changxing Miao , Yifei Wu , Guixiang Xu

In this paper, our discussion mainly focuses on equations with energy supercritical nonlinearities. We establish probabilistic global well-posedness (GWP) results for the cubic Schr\"odinger equation with any fractional power of the…

偏微分方程分析 · 数学 2021-09-07 Mouhamadou Sy , Xueying Yu

In this paper, we deal with analysis of the initial-boundary value problems for the semilinear time-fractional diffusion equations, while the case of the linear equations was considered in the first part of the present work. These equations…

偏微分方程分析 · 数学 2024-11-11 Yuri Luchko , Masahiro Yamamoto