Results 31 to 40 of about 11,512,228 (286)

Blow up in a periodic semilinear heat equation

open access: yes, 2023
Blow up in a one-dimensional semilinear heat equation is studied using a combination of numerical and analytical tools. The focus is on problems periodic in the space variable and starting out from a nearly flat, positive initial condition. Novel results
JR King (14801902)   +2 more
core   +4 more sources

Existence of sign-changing solutions for radially symmetric p-Laplacian equations with various potentials

open access: yesElectronic Journal of Differential Equations, 2021
In this article, we study the nonlinear equation $$ \big(r^{n-1}|u'(r)|^{p-2}u'(r)\big)'+r^{n-1}w(r)|u(r)|^{q-2}u(r)=0, $$ where \(q>p>1\) .For positive potentials (\(w>0\)), we investigate the existence of sign-changing solutions with prescribed number
Wei-Chuan Wang
doaj   +3 more sources

Blow-Up Of Solutions For The Damped Boussinesq Equation

open access: yesZeitschrift für Naturforschung A, 2005
We consider the blow-up of solutions as a function of time to the initial boundary value problem for the damped Boussinesq equation.
Polat, N, Kaya, D, Tutalar, HI
openaire   +2 more sources

The Blow-Up of the Local Energy Solution to the Wave Equation with a Nontrivial Boundary Condition

open access: yesMathematics
In this study, we examine the wave equation with a nontrivial boundary condition. The main target of this study is to prove the local-in-time existence and the blow-up in finite time of the energy solution.
Yulong Liu
doaj   +1 more source

Blow-Up Solution of Modified-Logistic-Diffusion Equation

open access: yesInternational Journal of Differential Equations, 2019
Modified-Logistic-Diffusion Equation ut=Duxx+u|1-u| with Neumann boundary condition has a global solution, if the given initial condition ψ satisfies ψ(x)≤1, for all x∈[0,1].
P. Sitompul, Y. Soeharyadi
doaj   +1 more source

The applications of Sobolev inequalities in proving the existence of solution of the quasilinear parabolic equation

open access: yesBoundary Value Problems, 2020
The aim of this paper is to show some applications of Sobolev inequalities in partial differential equations. With the aid of some well-known inequalities, we derive the existence of global solution for the quasilinear parabolic equations.
Yuanfei Li, Lianhong Guo, Peng Zeng
doaj   +1 more source

Spatial and single‐nuclei transcriptomics reveals idiosyncratic and generic patterns in papillary and anaplastic thyroid cancers

open access: yesMolecular Oncology, EarlyView.
Matched spatial transcriptomics and single‐nuclei RNA‐seq were generated for anaplastic and BRAFV600E papillary thyroid cancers revealing generic and tumor‐specific states occurring in cancer cells and in the tumor microenvironment. In this context, cancer dedifferentiation mirrored organoid maturation through ordered thyroid marker gain/loss ...
Adrien Tourneur   +11 more
wiley   +1 more source

Global and blow-up solutions for a nonlinear reaction diffusion equation with Robin boundary conditions

open access: yesBoundary Value Problems, 2020
In the paper, we investigate global and blow-up solutions for a class of nonlinear reaction diffusion equations with Robin boundary conditions. By using auxiliary functions and a first-order differential inequality technique, we establish conditions on ...
Huimin Tian, Lingling Zhang
doaj   +1 more source

On blow up of solutions of nonlinear evolution equations [PDF]

open access: yesProceedings of the American Mathematical Society, 1988
We give a complete description of domains of blow up for general second order inequalities, which allows us to obtain some new results on nonexistence of global solutions for nonlinear hyperbolic equations, both in
openaire   +2 more sources

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

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