Results 51 to 60 of about 390,420 (212)
Blow-up of radially symmetric solutions of a non-local problem modelling Ohmic heating
Electronic Journal of Differential Equations, 2002 We consider a non-local initial boundary-value problem for the equation $$ u_t=Delta u+lambda f(u)/Big(int_{Omega}f(u),dxBig)^2 ,quad x in Omega subset mathbb{R}^2 ,,;t>0, $$ where $u$ represents a temperature and $f$ is a positive and decreasing ...
Dimitrios E. Tzanetis
doaj
General decay for a nonlinear pseudo-parabolic equation with viscoelastic term
Demonstratio Mathematica, 2022 This work is concerned with a multi-dimensional viscoelastic pseudo-parabolic equation with critical Sobolev exponent. First, with some suitable conditions, we prove that the weak solution exists globally.
Vu Ngo Tran +2 more
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Global Existence Results for Viscoplasticity at Finite Strain [PDF]
, 2016 We study a model for rate-dependent gradient plasticity at finite strain based on the multiplicative decomposition of the strain tensor, and investigate the existence of global-in-time solutions to the related PDE system.
Rossi, Riccarda +8 more
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Nonlinear heat equation with viscoelastic term: Global existence and blowup in finite time
Demonstratio MathematicaIn this study, we investigate a nonlinear heat equation incorporating both a viscoelastic term and a reaction-diffusion term that depends on space-time variables.
Vu Ngo Tran, Dung Dao Bao
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Anthropocentrism: Existence against Essence
, 2013 Anthropocentrism magnifies the importance of existence in relation to man s essence This degrades the generic essence of the man and his genuine need for nature The principles of sustainable development are at stake The way modern man lives and works ...
Professor Slobodan VukiAeviA
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Global Journalism: A fancy concept of wishful thinking or a news style on the rise? [PDF]
, 2016 This thesis aims to examine the occurrence of global journalism as a news style in Swedish newspapers, and to show not only to what extent global journalism occurs in relation to the more traditional domestic and foreign styles of reporting news, but ...
Lundgren, Evelina
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Global existence results for impulsive differential equations
, 2006 This paper studies the global existence of solutions of the impulsive differential equation{x′(t)=f(t,x(t)),t⩾0,t≠τk,Δx(t)=Ik(x(t)),t=τk,k=1,2,…, where Δx(t)=x(t+)−x(t), f:[0,∞)×Rn→Rn, Ik:Rn→Rn, k=1,2,…, and {τk} is a sequence of real numbers such that ...
Liu, Xinzhi, Shen, Jianhua
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, 2004 This paper deals with existence and non-existence of global solutions of certain fast-slow diffusion systems with nonlinear boundary conditions. Necessary and sufficient conditions for global existence of positive solutions are obtained in terms of ...
Qi, Yuanwei, Wang, Mingxin, Wang, Zejun
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Second order p-evolution equations with critical nonlinearity
Bruno Pini Mathematical Analysis SeminarIn this paper, we study critical nonlinearities for global small data solutions to the plate equation and other second order p-evolution equations, possibly under the action of a noneffective dissipative term.
Marcello D'Abbicco, Giovanni Girardi
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GLOBAL EXISTENCE OF SOLUTIONS FOR A REACTION-DIFFUSION SYSTEM [PDF]
, 2007 We show the global existence of solutions of a reactiondiffusion system with the nonlinear terms |x|σjupj vqj . The proof is based on the existence of super-solutions and the comparison principle.
Aoyagi, Yutaka +2 more
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