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In this paper, we investigate existence of global-in-time strong solutions to the kinetic Cucker--Smale model coupled with the Stokes equations in the whole space. By introducing a weighted Sobolev space and using space-time estimates for…

偏微分方程分析 · 数学 2024-06-19 Chunyin Jin

We introduce a multi-dimensional variant of the kinetic Cucker-Smale model with singular and matrix-valued communication weight, which reduces to the singular kinetic Cucker-Smale equation in the one-dimensional case. We propose an…

偏微分方程分析 · 数学 2022-08-01 Jan Peszek , David Poyato

We study the emergent behaviors of the weak solutions to the kinetic Cucker-Smale (in short, KCS) model in a non-compact spatial-velocity support setting. Unlike the compact support situation, non-compact support of a weak solution can…

偏微分方程分析 · 数学 2026-04-21 Seung-Yeal Ha , Xinyu Wang

In this paper, we establish the existence and uniqueness of local strong solutions to the kinetic Cucker--Smale model coupled with the isentropic compressible Navier--Stokes equation in the whole space. Moreover, the blowup mechanism for…

偏微分方程分析 · 数学 2018-08-13 Chunyin Jin

We establish the global existence of weak solutions to a class of kinetic flocking equations. The models under consideration include the kinetic Cucker-Smale equation with possibly non-symmetric flocking potential, the Cucker-Smale equation…

偏微分方程分析 · 数学 2012-02-21 Trygve Karper , Antoine Mellet , Konstantina Trivisa

We prove that certain types of measure-valued mappings are monokinetic i.e. the distribution of velocity is concentrated in a Dirac mass. These include weak measure-valued solutions to the strongly singular Cucker-Smale model with…

偏微分方程分析 · 数学 2022-11-04 Michał Fabisiak , Jan Peszek

We study the Cucker--Smale (C-S) flocking systems involving both singularity and noise. We first show the local strong well-posedness for the stochastic singular C-S systems before the first collision time, which is a well defined stopping…

动力系统 · 数学 2021-09-21 Qiao Huang , Xiongtao Zhang

In this paper we study the well-posedness of the Cauchy problem for first order hyperbolic systems with constant multiplicities and with low regularity coefficients depending just on the time variable. We consider Zygmund and log-Zygmund…

偏微分方程分析 · 数学 2014-04-21 Ferruccio Colombini , Daniele Del Santo , Francesco Fanelli , Guy Métivier

The Cucker-Smale flocking model belongs to a wide class of kinetic models that describe a collective motion of interacting particles that exhibit some specific tendency e.g. to aggregate, flock or disperse. The paper examines the kinetic…

偏微分方程分析 · 数学 2017-07-19 Piotr B. Mucha , Jan Peszek

We consider the well-posedness of the initial value problem associated to the k-generalized Zakharov-Kuznetsov equation in fractional weighted Sobolev spaces. Our method of proof is based on the contraction mapping principle and it mainly…

偏微分方程分析 · 数学 2015-10-14 German E. Fonseca , Miguel A. Pachon

In this paper, we prove the global wellposedness of the Gross-Pitaevskii equation with white noise potential, i.e. a cubic nonlinear Schr{\"o}dinger equation with harmonic confining potential and spatial white noise multiplicative term.…

偏微分方程分析 · 数学 2023-11-20 Pierre Mackowiak

This paper is concerned with the Cauchy problem of the modified Zakharov-Kuznetsov equation on $\mathbb{R}^d$. If $d=2$, we prove the sharp estimate which implies local in time well-posedness in the Sobolev space $H^s(\mathbb{R}^2)$ for $s…

偏微分方程分析 · 数学 2019-12-02 Shinya Kinoshita

This paper addresses the well-posedness of a general class of bulk-surface convective Cahn--Hilliard systems with singular potentials. For this model, we first prove the existence of a global-in-time weak solution by approximating the…

偏微分方程分析 · 数学 2025-05-15 Patrik Knopf , Jonas Stange

This article investigates the well-posedness of weak solutions to non-linear parabolic PDEs driven by rough coefficients with rough initial data in critical homogeneous Besov spaces. Well-posedness is understood in the sense of existence…

偏微分方程分析 · 数学 2026-05-01 Pascal Auscher , Sebastian Bechtel

We propose a large-scale scaling viewpoint for deriving mesoscopic dynamics from interacting particle systems and apply it to the Cucker--Smale flocking model. In contrast with the classical mean-field regime leading to the Vlasov-type…

偏微分方程分析 · 数学 2026-02-17 Ruicheng Cheng , Seung-Yeal Ha , Jaemoon Lee , Zhenfu Wang

We prove weak uniqueness of mild solutions for general classes of SPDEs on a Hilbert space. The main novelty is that the drift is only defined on a Sobolev-type subspace and no H\"older-continuity assumptions are required. This framework…

概率论 · 数学 2024-06-21 Federico Bertacco , Carlo Orrieri , Luca Scarpa

We present collective dynamics of the Cucker-Smale (C-S) ensemble under random communications. As an effective modeling of the C-S ensemble, we introduce a stochastic kinetic C-S equation with a multiplicative white noise. For the proposed…

偏微分方程分析 · 数学 2019-09-04 Seung-Yeal Ha , Jinwook Jung , Michael Röckner

We prove short-time well-posedness and existence of global weak solutions of the Beris--Edwards model for nematic liquid crystals in the case of a bounded domain with inhomogeneous mixed Dirichlet and Neumann boundary conditions. The system…

偏微分方程分析 · 数学 2013-11-15 Helmut Abels , Georg Dolzmann , YuNing Liu

We first introduce a new model for a two-dimensional gauge-covariant wave equation with space-time white noise. In our main theorem, we obtain the probabilistic global well-posedness of this model in the Lorenz gauge. Furthermore, we prove…

偏微分方程分析 · 数学 2025-02-12 Bjoern Bringmann , Igor Rodnianski

In this paper, we study global existence and large time behaviors of strong solutions to the kinetic Cucker--Smale model coupled with the three dimensional incompressible Navier--Stokes equations in the whole space. Using the maximal…

偏微分方程分析 · 数学 2021-12-28 Chunyin Jin
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