Results 21 to 30 of about 27,775 (268)

On the Blow-Up of Solutions of a Weakly Dissipative Modified Two-Component Periodic Camassa-Holm System

open access: yesJournal of Applied Mathematics, 2012
We study the Cauchy problem of a weakly dissipative modified two-component periodic Camassa-Holm equation. We first establish the local well-posedness result.
Yongsheng Mi, Chunlai Mu, Weian Tao
doaj   +1 more source

Lower Bound on the Blow-up Rate of the Axisymmetric Navier–Stokes Equations [PDF]

open access: yesInternational Mathematics Research Notices, 2008
Consider axisymmetric strong solutions of the incompressible Navier-Stokes equations in $\R^3$ with non-trivial swirl. Such solutions are not known to be globally defined, but it is shown in \cite{MR673830} that they could only blow up on the axis of symmetry. Let $z$ denote the axis of symmetry and $r$ measure the distance to the z-axis.
Chen, C.-C.   +3 more
openaire   +4 more sources

Critical blow-up exponents for a nonlocal reaction-diffusion equation with nonlocal source and interior absorption

open access: yesNonlinear Analysis, 2016
This paper is concerned with a nonlocal reaction-diffusion equation with the nonlocal source and interior absorption with Dirichlet conditions or Neumann conditions.
Jiashan Zheng
doaj   +1 more source

Blow-Up Phenomena for Nonlinear Reaction-Diffusion Equations under Nonlinear Boundary Conditions

open access: yesJournal of Function Spaces, 2016
This paper deals with blow-up and global solutions of the following nonlinear reaction-diffusion equations under nonlinear boundary conditions: g(u)t=∇·au∇u+fu  in  Ω×0,T,  ∂u/∂n=bx,u,t  on  ∂Ω×(0,T),  u(x,0)=u0(x)>0,  in  Ω¯, where Ω⊂RN  (N≥2) is a ...
Juntang Ding
doaj   +1 more source

General decay and blow-up of solutions for a nonlinear viscoelastic wave equation with strong damping

open access: yesBoundary Value Problems, 2018
This article is concerned with the decay and blow-up properties of a nonlinear viscoelastic wave equation with strong damping. We first show a local existence theorem.
Qian Li, Luofei He
doaj   +1 more source

Systems with Local and Nonlocal Diffusions, Mixed Boundary Conditions, and Reaction Terms

open access: yesAbstract and Applied Analysis, 2018
We study systems with different diffusions (local and nonlocal), mixed boundary conditions, and reaction terms. We prove existence and uniqueness of the solutions and then analyze global existence vs blow up in finite time.
Mauricio Bogoya, Julio D. Rossi
doaj   +1 more source

On well-posedness of semilinear Rayleigh-Stokes problem with fractional derivative on ℝN

open access: yesAdvances in Nonlinear Analysis, 2021
We are devoted to the study of a semilinear time fractional Rayleigh-Stokes problem on ℝN, which is derived from a non-Newtonain fluid for a generalized second grade fluid with Riemann-Liouville fractional derivative.
He Jia Wei   +3 more
doaj   +1 more source

Numerical Blow-Up Time for a Semilinear Parabolic Equation with Nonlinear Boundary Conditions

open access: yesJournal of Applied Mathematics, 2008
We obtain some conditions under which the positive solution for semidiscretizations of the semilinear equation ut=uxx−a(x,t)f(u ...
Louis A. Assalé   +2 more
doaj   +1 more source

On decay and blow-up of solutions for a system of viscoelastic equations with weak damping and source terms

open access: yesJournal of Inequalities and Applications, 2019
In this article, we investigate a system of two viscoelastic equations with Dirichlet boundary conditions. Under some suitable assumptions on the function gi(⋅) $g_{i}(\cdot )$, fi(⋅,⋅) $f_{i}(\cdot ,\cdot )$ ( i=1,2 $i=1,2$) and the initial data, we ...
Luofei He
doaj   +1 more source

Global and Blow-Up Solutions for a Class of Nonlinear Parabolic Problems under Robin Boundary Condition

open access: yesAbstract and Applied Analysis, 2014
We discuss the global and blow-up solutions of the following nonlinear parabolic problems with a gradient term under Robin boundary conditions: (b(u))t=∇·(h(t)k(x)a(u)∇u)+f(x,u,|∇u|2,t), in D×(0,T), (∂u/∂n)+γu=0, on ∂D×(0,T), u(x,0)=u0(x)>0, in D¯, where
Lingling Zhang, Hui Wang
doaj   +1 more source

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