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This note is devoted to a simple proof of blowup of solutions for a nonlinear heat equation. The criterion for a blowup is expressed in terms of a Morrey space norm and is in a sense complementary to conditions guaranteeing the global in…

Analysis of PDEs · Mathematics 2017-05-19 Piotr Biler

We establish the local existence and the uniqueness of solutions of the heat equation with a nonlinear boundary condition for the initial data in uniformly local $L^r$ spaces. Furthermore, we study the sharp lower estimates of the blow-up…

Analysis of PDEs · Mathematics 2014-04-29 Kazuhiro Ishige , Ryuichi Sato

In this paper we consider a semilinear parabolic equation with nonlinear and nonlocal boundary condition and nonnegative initial datum. We prove some global existence results. Criteria on this problem which determine whether the solutions…

Analysis of PDEs · Mathematics 2015-09-08 Alexander Gladkov , Tatiana Kavitova

We study the blow-up problem of one-dimensional nonlinear heat equations. Our result shows that for a certain class of initial conditions, the solutions blow up in finite time and we characterize the asymptotic dynamics of these solutions.…

Analysis of PDEs · Mathematics 2007-05-23 S. Dejak , Zhou Gang , I. M. Sigal , S. Wang

We examine the energy-critical nonlinear heat equation in critical spaces for any dimension greater or equal than three. The aim of this paper is two-fold. First, we establish a necessary and sufficient condition on initial data at or below…

Analysis of PDEs · Mathematics 2025-04-01 Masahiro Ikeda , César J. Niche , Gabriela Planas

In this paper, we consider the solution of a nonlocal parabolic equation. Focusing on the solutions with initial data at high energy level, we find the criteria for global existence and finite time blow up for the corresponding solution…

Analysis of PDEs · Mathematics 2018-05-03 Xiaoliang Li , Baiyu Liu

Classification theory on the existence and non-existence of local in time solutions for initial value problems of nonlinear heat equations are investigated. Without assuming a concrete growth rate on a nonlinear term, we reveal the…

Analysis of PDEs · Mathematics 2016-09-22 Yohei Fujishima , Norisuke Ioku

Blowup analysis for solutions of a general evolution equation with nonlocal diffusion and localized source is performed. By comparison with recent results on global-in-time solutions, a dichotomy result is obtained.

Analysis of PDEs · Mathematics 2018-07-11 Piotr Biler

We study the asymptotic behavior of blow-up solutions of the heat equation with nonlinear boundary conditions. In particular, we classify the asymptotic behavior of blow-up solutions and investigate the spacial singularity of their blow-up…

Analysis of PDEs · Mathematics 2013-03-25 Junichi Harada

We consider a semilinear parabolic equation with flux at the boundary governed by a nonlinear memory. We give some conditions for this problem which guarantee global existence of solutions as well as blow up in finite time of all nontrivial…

Analysis of PDEs · Mathematics 2019-03-29 Alexander Gladkov , Mohammed Guedda

In this paper, we consider a semilinear parabolic equation with nonlinear nonlocal Neumann boundary condition and nonnegative initial datum. We first prove global existence results. We then give some criteria on this problem which determine…

Analysis of PDEs · Mathematics 2016-11-17 Alexander Gladkov

The study of blow-up solution of time-fractional heat equations is of significant and wide-ranging interest for its multitude of applications. These types of equations are used to model several real problems in science and engineering. This…

Analysis of PDEs · Mathematics 2025-09-24 Hind Ghazi Hameed , Burhan Selcuk , Maan A. Rasheed

Existence of strong solutions to a nonlocal semilinear heat equation is shown. The main feature of the equation is that the nonlocal term depends on the unknown on the whole time interval of existence, the latter being given a priori. The…

Analysis of PDEs · Mathematics 2020-07-13 Christoph Walker

In this article, we consider a semilinear pseudo parabolic heat equation with the nonlinearity which is the product of logarithmic and polynomial functions. Here we prove the global existence of solution to the problem for arbitrary…

Analysis of PDEs · Mathematics 2022-02-01 Joydev Halder , Bhargav Kumar Kakumani , Suman Kumar Tumuluri

In this article, we study the local existence of solutions for a wave equation with a nonlocal in time nonlinearity. Moreover, a blow-up results are proved under some conditions on the dimensional space, the initial data and the nonlinear…

Analysis of PDEs · Mathematics 2010-08-26 Ahmad Fino , Mokhtar Kirane , Vladimir Georgiev

In this article, we study a semi-linear heat equation with the nonlinearity which is the product of polynomial and logarithmic functions. Using the invariance of the potential well(s), we have established the global existence and…

Analysis of PDEs · Mathematics 2022-01-14 Joydev Halder , Suman Kumar Tumuluri

We consider the Cauchy problem for a time fractional semilinear heat equation with initial data belonging to inhomogeneous/homogeneous Besov--Morrey spaces. We present sufficient conditions for the existence of local/global-in-time…

Analysis of PDEs · Mathematics 2023-05-12 Yusuke Oka , Erbol Zhanpeisov

We consider semilinear parabolic equations with nonlinear boundary conditions. We give conditions which guarantee global existence of solutions as well as blow-up in finite time of all solutions with nontrivial initial data. The results…

Analysis of PDEs · Mathematics 2020-06-04 Alexander Gladkov , Mohammed Guedda

Blow-up solutions to a heat equation with spatial periodicity and a quadratic nonlinearity are studied through asymptotic analyses and a variety of numerical methods. The focus is on the dynamics of the singularities in the complexified…

Analysis of PDEs · Mathematics 2023-08-08 M. Fasondini , J. R. King , J. A. C. Weideman

In this paper, we study the initial boundary value problem for the nonlinear wave equation with combined power-type nonlinearities with variable coefficients. The global behavior of the solutions with non-positive and sub-critical energy is…

Analysis of PDEs · Mathematics 2023-10-31 Milena Dimova , Natalia Kolkovska , Nikolai Kutev
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