Results 91 to 100 of about 2,948 (219)

Symmetrization of mathematical model of charge transport in semiconductors

open access: yesLe Matematiche, 2002
A mathematical model of charge transport in semiconductors is considered. The model is a quasilinear system of differential equations. A problem of finding an additional entropy conservation law and system symmetrization are solved.
Alexander M. Blokhin, I. G. Sokovikov
doaj  

Performance of GRKM-method for solving classes of ordinary and partial differential equations of sixth-orders

open access: yesOpen Engineering
A general quasilinear sixth-order ordinary differential equation (ODE) is an important class of ODEs. The primary objective of this study is to establish a numerical method for solving a general class of quasilinear sixth-order partial differential ...
Mechee Mohammed S.   +2 more
doaj   +1 more source

On positive weak solutions for a class of weighted (p(.), q(.))−Laplacian systems

open access: yesMoroccan Journal of Pure and Applied Analysis, 2019
In this paper, we study the existence of positive weak solutions for a quasilinear elliptic system involving weighted (p(.), q(.))−Laplacian operators. The approach is based on sub-supersolutions method and on Schauder’s fixed point theorem.
Azroul Elhoussine   +2 more
doaj   +1 more source

Lyapunov‐Type Inequalities for the Quasilinear Difference Systems

open access: yesDiscrete Dynamics in Nature and Society, 2012
We establish several Lyapunov‐type inequalities for quasilinear difference systems, which generalize or improve all related existing ones. Applying these results, we also obtain some lower bounds for the first eigencurve in the generalized spectra.
Qi-Ming Zhang, X. H. Tang
openaire   +2 more sources

Lyapunov-Type Inequalities for Some Quasilinear Dynamic System Involving the (p1,p2,…,pm)-Laplacian on Time Scales

open access: yesJournal of Applied Mathematics, 2011
We establish several new Lyapunov-type inequalities for some quasilinear dynamic system involving the (p1,p2,…,pm)-Laplacian on an arbitrary time scale 𝕋, which generalize and improve some related existing results including the continuous and discrete ...
Xiaofei He, Qi-Ming Zhang
doaj   +1 more source

A quasilinear singular elliptic system without cooperative structure

open access: yes, 2014
International audienceIn this article, we investigate the existence of positive solutions of a singular quasilinear elliptic system for which the cooperative structure is not required.
Dumitru MOTREANU   +3 more
core   +1 more source

The Numbers of Positive Solutions by the Lusternik-Schnirelmann Category for a Quasilinear Elliptic System Critical with Hardy Terms

open access: yesAbstract and Applied Analysis, 2019
In this paper, we study the quasilinear elliptic system with Sobolev critical exponent involving both concave-convex and Hardy terms in bounded domains.
Mustapha Khiddi
doaj   +1 more source

AN EXISTENCE THEOREM FOR QUASILINEAR SYSTEMS [PDF]

open access: yesProceedings of the Edinburgh Mathematical Society, 2006
AbstractThis paper deals with the existence of positive radial solutions for the quasilinear system $\text{div}(|\nabla u_i|^{p-2}\nabla u_i)+\lambda f^i(u_1,\dots,u_n)=0$, $|x|\lt1$, $u_i(x)=0$, on $|x|=1$, $i=1,\dots,n$, $p\gt1$, $\lambda>0$, $x\in\mathbb{R}^N$. The $f^i$, $i=1,\dots,n$, are continuous and non-negative functions. Let $\bm{u}=(u_1,\
openaire   +1 more source

QUASILINEAR ELLIPTIC SYSTEMS OF RESONANT TYPE AND NONLINEAR EIGENVALUE PROBLEMS [PDF]

open access: yes, 2020
This work is devoted to the study of a quasilinear elliptic system of resonant type. We prove the existence of infinitely many solutions of a related nonlinear eigenvalue problem.
Pablo L De, M Cristina Mariani
core  

Two-grid hp-version DGFEMs for strongly monotone second-order quasilinear elliptic PDEs [PDF]

open access: yes, 2011
In this article we develop the a priori error analysis of so-called two-grid hp-version discontinuous Galerkin finite element methods for the numerical approximation of strongly monotone second-order quasilinear partial differential equations.
Scott Congreve   +8 more
core   +1 more source

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