Results 1 to 10 of about 463 (50)

Global well-posedness of the viscous Camassa–Holm equation with gradient noise [PDF]

open access: yesDiscrete and Continuous Dynamical Systems. Series A, 2022
. We analyse a nonlinear stochastic partial differential equation that corresponds to a viscous shallow water equation (of the Camassa–Holm type) perturbed by a convective, position-dependent noise term. We establish the existence of weak solutions in H m
H. Holden, K. Karlsen, Peter H. C. Pang
semanticscholar   +1 more source

Existence result of the global attractor for a triply nonlinear thermistor problem

open access: yesMoroccan Journal of Pure and Applied Analysis, 2023
We study the existence and uniqueness of a bounded weak solution for a triply nonlinear thermistor problem in Sobolev spaces. Furthermore, we prove the existence of an absorbing set and, consequently, the universal attractor.
Ammi Moulay Rchid Sidi   +3 more
doaj   +1 more source

Equivalence between a time-fractional and an integer-order gradient flow: The memory effect reflected in the energy

open access: yesAdvances in Nonlinear Analysis, 2022
Time-fractional partial differential equations are nonlocal-in-time and show an innate memory effect. Previously, examples like the time-fractional Cahn-Hilliard and Fokker-Planck equations have been studied.
Fritz Marvin   +2 more
doaj   +1 more source

A non-smooth Brezis-Oswald uniqueness result

open access: yesOpen Mathematics, 2023
We classify the non-negative critical points in W01,p(Ω){W}_{0}^{1,p}\left(\Omega ) of J(v)=∫ΩH(Dv)−F(x,v)dx,J\left(v)=\mathop{\int }\limits_{\Omega }\hspace{0.15em}H\left(Dv)-F\left(x,v){\rm{d}}x, where HH is convex and positively pp-homogeneous, while ...
Mosconi Sunra
doaj   +1 more source

One-dimensional inverse problems of determining the kernel of the integro-differential heat equation in a bounded domain

open access: yesNonautonomous Dynamical Systems, 2023
The integro-differential equation of heat conduction with the time-convolution integral on the right side is considered. The direct problem is the initial-boundary problem for this integro-differential equation.
Durdiev Durdimurod Kalandarovich   +1 more
doaj   +1 more source

Unconditional uniqueness for the energy-critical nonlinear Schrödinger equation on $\mathbb {T}^{4}$

open access: yesForum of Mathematics, Pi, 2022
We consider the $\mathbb {T}^{4}$ cubic nonlinear Schrödinger equation (NLS), which is energy-critical. We study the unconditional uniqueness of solutions to the NLS via the cubic Gross–Pitaevskii hierarchy, an uncommon method for NLS analysis which is ...
Xuwen Chen, Justin Holmer
doaj   +1 more source

A Carleman inequality on product manifolds and applications to rigidity problems

open access: yesAdvanced Nonlinear Studies, 2023
In this article, we prove a Carleman inequality on a product manifold M×RM\times {\mathbb{R}}. As applications, we prove that (1) a periodic harmonic function on R2{{\mathbb{R}}}^{2} that decays faster than all exponential rate in one direction must be ...
Sun Ao
doaj   +1 more source

Multiplicity result for a critical elliptic system with concave-convex nonlinearities

open access: yesBoundary Value Problems, 2013
We study the existence of multiple solutions of a strongly indefinite elliptic system involving the critical Sobolev exponent and concave-convex nonlinearities.
C. J. Batkam, F. Colin
semanticscholar   +2 more sources

Uniqueness in Rough Almost Complex Structures and Differential Inequalities [PDF]

open access: yes, 2009
We prove that for almost complex structures of H\"older class at least 1/2, any J-holomorphic disc, that is constant on some non empty open set, is constant. This is in striking contrast with well known, trivial, non-uniqueness results.
Rosay, Jean-Pierre
core   +3 more sources

Non-Uniqueness and prescribed energy for the continuity equation [PDF]

open access: yes, 2014
In this note we provide new non-uniqueness examples for the continuity equation by constructing infinitely many weak solutions with prescribed ...
Crippa, Gianluca   +3 more
core   +2 more sources

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