Results 21 to 30 of about 13,013,114 (294)

A complete classification of simultaneous blow-up rates

open access: yesApplied Mathematics Letters, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Cristina Brändle   +2 more
openaire   +2 more sources

The Blow-Up Rate for a Semilinear Parabolic System

open access: yesJournal of Mathematical Analysis and Applications, 1999
This paper considers the blow-up of solutions of the semilinear parabolic system \[ {\partial u_i\over\partial t}=\Delta u_i+ u^{p_i}_{i+1},\quad i=1,2,\dots, k,\quad u_{k+1}: =u_1,\quad x\in\mathbb{R}^N,\;0{1\over 2}N\), then any solution which blows up in time \(T\) satisfies \(u_i(x,t)\leq C(T-t)^{\alpha_i}\), \(i=1,2, \dots,k\), \((x,t)\in\mathbb{R}
Fila, Marek, Quittner, Pavol
openaire   +2 more sources

On the blow-up rate for fast blow-up solutions arising in an anisotropic crystalline motion

open access: yesJournal of Computational and Applied Mathematics, 2003
The authors study an anisotropic motion of closed, convex polygonal curves by a power of crystalline curvature in the plane. They mainly discuss the degenerate pinching singularity and show the exact blow-up rate for a fast blow-up solution which arises in an equivalent blow-up problem.
Ishiwata, Tetsuya, Yazaki, Shigetoshi
openaire   +2 more sources

The Blow-Up Rate for Strongly Perturbed Semilinear Wave Equations [PDF]

open access: yesJournal of Dynamics and Differential Equations, 2014
17 pages.
Hamza, M. A., Saidi, O.
openaire   +3 more sources

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

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

Existence of global solutions and blow-up for p-Laplacian parabolic equations with logarithmic nonlinearity on metric graphs

open access: yesElectronic Journal of Differential Equations, 2022
In this article, we study the initial-boundary value problem for a p-Laplacian parabolic equation with logarithmic nonlinearity on compact metric graphs.
Ru Wang, Xiaojun Chang
doaj   +1 more source

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 rate estimates and blow-up set for a system of two heat equations with coupled nonlinear neumann boundary conditions

open access: yes, 2020
This paper deals with the blow-up properties of positive solutions to a parabolic system of two heat equations, defined on a ball in associated with coupled Neumann boundary conditions of exponential type.
Maan A Rasheed (16279517)   +1 more
core   +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

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