Results 21 to 30 of about 2,437,712 (232)

The critical exponents for a semilinear fractional pseudo-parabolic equation with nonlinear memory in a bounded domain

open access: yesElectronic Research Archive, 2023
This paper considers blow-up and global existence for a semilinear space-time fractional pseudo-parabolic equation with nonlinear memory in a bounded domain.
Yaning Li , Yuting Yang
doaj   +1 more source

Optimal version of the Picard–Lindelöf theorem

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
Consider the differential equation $y'=F(x,y)$. We determine the weakest possible upper bound on $|F(x,y)-F(x,z)|$ which guarantees that this equation has for all initial values a unique solution, which exists globally.
Jan-Christoph Schlage-Puchta
doaj   +1 more source

On a viscoelastic heat equation with logarithmic nonlinearity

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2022
This work deals with the following viscoelastic heat equations with logarithmic nonlinearity \begin{align*} u_t-\Delta u+\int_{0}^{t}g(t-s)\Delta u(s)ds=\vert u\vert^{p-2}u\ln\vert u\vert.
Nguyen Van Y, Nhan Le, Le Xuan Truong
doaj   +1 more source

Global Existence for Capillary Water Waves [PDF]

open access: yesCommunications on Pure and Applied Mathematics, 2014
Consider the capillary water waves equations, set in the whole space with infinite depth, and consider small data (i.e., sufficiently close to zero velocity, and constant height of the water). We prove global existence and scattering. The proof combines in a novel way the energy method with a cascade of energy estimates, the space‐time resonance method
Germain, Pierre   +2 more
openaire   +2 more sources

Global existence and stability for the modified Mullins–Sekerka and surface diffusion flow

open access: yesMathematics in Engineering, 2022
In this survey we present the state of the art about the asymptotic behavior and stability of the modified Mullins–Sekerka flow and the surface diffusion flow of smooth sets, mainly due to E. Acerbi, N. Fusco, V. Julin and M. Morini.
Serena Della Corte   +2 more
doaj   +1 more source

Kinetic formulation and global existence for the Hall-Magneto-hydrodynamics system [PDF]

open access: yes, 2011
This paper deals with the derivation and analysis of the the Hall Magneto-Hydrodynamic equations. We first provide a derivation of this system from a two-fluids Euler-Maxwell system for electrons and ions, through a set of scaling limits. We also propose
A. N. Simakov   +25 more
core   +4 more sources

Global existence and boundedness for quasi-variational systems

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1999
We consider quasi-variational ordinary differential systems, which may be considered as the motion law for holonomic mechanical systems. Even when the potential energy of the system is not bounded from below, by constructing appropriate Liapunov ...
Giancarlo Cantarelli
doaj   +1 more source

Blow-up analysis for a doubly nonlinear parabolic system with multi-coupled nonlinearities

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
This paper deals with the global existence and the global nonexistence of a doubly nonlinear parabolic system coupled via both nonlinear reaction terms and nonlinear boundary flux.
Jian Wang, Yanyan Ge
doaj   +1 more source

On the global existence and blow-up for the double dispersion equation with exponential term

open access: yesElectronic Research Archive, 2023
This paper deals with the initial boundary value problem for the double dispersion equation with nonlinear damped term and exponential growth nonlinearity in two space dimensions. We first establish the local well-posedness in the natural energy space by
Xiao Su, Hongwei Zhang
doaj   +1 more source

Global existence for coupled Klein-Gordon equations with different speeds [PDF]

open access: yes, 2010
Consider, in dimension 3, a system of coupled Klein-Gordon equations with different speeds, and an arbitrary quadratic nonlinearity. We show, for data which are small, smooth, and localized, that a global solution exists, and that it scatters.
Germain, Pierre
core   +2 more sources

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