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In this paper, we investigate the two-dimensional incompressible primitive equations with fractional horizontal dissipation. Specifically, we establish global well-posedness of strong solutions for arbitrarily large initial data when the…

Analysis of PDEs · Mathematics 2025-11-05 Changhui Tan , Zhuan Ye

This paper is concerned with the local well-posedness for the higher-order generalized KdV type equation with low-degree of nonlinearity. The equation arises as a non-integrable and lower nonlinearity version of the higher-order KdV…

Analysis of PDEs · Mathematics 2021-09-07 Hayato Miyazaki

In this paper we consider the local well-posedness theory for the quadratic nonlinear Schr\"odinger equation with low regularity initial data in the case when the nonlinearity contains derivatives. We work in 2+1 dimensions and prove a…

Analysis of PDEs · Mathematics 2007-05-23 Ioan Bejenaru

Proving local well-posedness for quasilinear problems in pde's presents a number of difficulties, some of which are universal and others of which are more problem specific. While a common standard, going back to Hadamard, has existed for a…

Analysis of PDEs · Mathematics 2022-04-26 Mihaela Ifrim , Daniel Tataru

We are interested in the cubic Dirac equation in two space dimensions. We establish the small data global existence and sharp pointwise decay results for general cubic nonlinearities without additional structure. We also prove the…

Analysis of PDEs · Mathematics 2023-03-14 Qian Zhang

Recently, there has been a wide interest in the study of aggregation equations and Patlak-Keller-Segel (PKS) models for chemotaxis with degenerate diffusion. The focus of this paper is the unification and generalization of the…

Analysis of PDEs · Mathematics 2015-05-19 Jacob Bedrossian , Nancy Rodríguez , Andrea Bertozzi

In this paper we prove global well-posedness for the defocusing, energy-subcritical, nonlinear wave equation on $\mathbb{R}^{1 + 3}$ with initial data in a critical Besov space. No radial symmetry assumption is needed.

Analysis of PDEs · Mathematics 2021-08-09 Benjamin Dodson

The paper deals with local well-posedness, global existence and blow-up results for reaction--diffusion equations coupled with nonlinear dynamical boundary conditions.

Analysis of PDEs · Mathematics 2026-01-06 Alessio Fiscella , Enzo Vitillaro

We consider the wave and Klein-Gordon equations on the real hyperbolic space $\mathbb{H}^{n}$ ($n \geq2$) in a framework based on weak-$L^{p}$ spaces. First, we establish dispersive estimates on Lorentz spaces in the context of…

Analysis of PDEs · Mathematics 2024-07-17 Lucas C. F. Ferreira , Pham Truong Xuan

We establish global well-posedness and scattering for solutions to the defocusing mass-critical (pseudoconformal) nonlinear Schr\"odinger equation $iu_t + \Delta u = |u|^{4/n} u$ for large spherically symmetric $L^2_x(\R^n)$ initial data in…

Analysis of PDEs · Mathematics 2007-05-23 Terence Tao , Monica Visan , Xiaoyi Zhang

We study the global well-posedness of the supercritical dissipative surface quasi-geostrophic (SQG) equation, a key model in geophysical fluid dynamics. While local well-posedness is known, achieving global well-posedness for large initial…

Analysis of PDEs · Mathematics 2024-03-01 Aynur Bulut , Hongjie Dong

We establish global well-posedness and scattering for solutions to the mass-critical nonlinear Hartree equation $iu_t+\Delta u=\pm(|x|^{-2}*|u|^2)u$ for large spherically symmetric $L^2_x(\Bbb{R}^d)$ initial data; in the focusing case we…

Analysis of PDEs · Mathematics 2009-01-11 Changxing Miao , Guixiang Xu , Lifeng Zhao

This paper is devoted to the investigation of long-time behaviour of solutions to wave equations with quadratic nonlinearity and cubic Dirac equations with Hartree-type nonlinearity. We consider the nonlinearity here with enough simplicity…

Analysis of PDEs · Mathematics 2022-07-07 Seokchang Hong

In this paper we study the Cauchy problem associated to the Maxwell-Schr\"odinger system with a defocusing pure-power non-linearity. This system has many applications in physics, for instance in the description of a charged non-relativistic…

Analysis of PDEs · Mathematics 2021-07-06 Paolo Antonelli , Pierangelo Marcati , Raffaele Scandone

In this paper, we prove the global well-posedness of the energy-critical nonlinear Schr\"odinger equations on the torus $\mathbb{T}^{d}$ for general dimensions. This result is new for dimensions $d\ge5$, extending previous results for…

Analysis of PDEs · Mathematics 2024-11-28 Beomjong Kwak

We consider the well-posedness of a class of hyperbolic partial differential equations on a one dimensional spatial domain. This class includes in particular infinite-dimensional networks of transport, wave and beam equations, or even…

Functional Analysis · Mathematics 2018-11-16 Birgit Jacob , Julia T. Kaiser

The global existence of bounded solutions to reaction-diffusion systems with fractional diffusion in the whole space $\mathbb R^N$ is investigated. The systems are assumed to preserve the non-negativity of initial data and to dissipate…

Analysis of PDEs · Mathematics 2025-02-25 Phuoc-Tai Nguyen , Bao Quoc Tang

This paper is devoted to the well-posedness of the inhomogeneous nonlinear wave equations. By combining Strichartz estimates with the contraction mapping principle, we establish local and global well-posedness in the function spaces…

Analysis of PDEs · Mathematics 2026-04-07 Jiang Boyu Shen Jiawei , Li Kexue

We consider the stochastic nonlinear Schr\"odinger equations (SNLS) posed on $d$-dimensional tori with either additive or multiplicative stochastic forcing. In particular, for the one-dimensional cubic SNLS, we prove global well-posedness…

Analysis of PDEs · Mathematics 2018-03-08 Kelvin Cheung , Razvan Mosincat

In this paper we prove a global well-posedness and scattering result for the defocusing conformal nonlinear wave equation in the hyperbolic space $\mathbb{H}^d, d \geq 3$. We take advantage of the hyperbolic geometry which yields stronger…

Analysis of PDEs · Mathematics 2024-12-10 Chutian Ma