Results 11 to 20 of about 2,948 (219)

Quasilinear and singular elliptic systems

open access: yesAdvances in Nonlinear Analysis, 2013
In this paper, we investigate the following quasilinear elliptic and singular system :
Giacomoni Jacques   +2 more
doaj   +2 more sources

Quasilinear elliptic systems of resonant type and nonlinear eigenvalue problems

open access: yesAbstract and Applied Analysis, 2002
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 Nàpoli, M. Cristina Mariani
doaj   +2 more sources

Blow-Up and Global Existence for a Quasilinear Parabolic System [PDF]

open access: yesDiscrete Dynamics in Nature and Society, 2014
The problem of solutions to a class of quasilinear coupling parabolic system was studied. By constructing weak upper-solutions and weak lower-solutions, we obtain the global existence and blow-up of solutions under appropriate conditions.
Chunchen Wu
doaj   +2 more sources

A Plankton allelopathic model described by a delayed quasilinear parabolic system

open access: yesMathematical Modelling and Analysis, 2012
The quasilinear parabolic system has been applied to a variety of physical and engineering problems. However, most works lack effective techniques to deal with the asymptotic stability.
Canrong Tian, Peng Zhu
doaj   +3 more sources

Two-grid virtual element discretization of quasilinear elliptic problem

open access: yesMathematical Modelling and Analysis
In this paper a two grid algorithm for quasilinear elliptic problem based on virtual element method (VEM) discretization is proposed. With this new algorithm the solution of a quasilinear elliptic problem on a fine grid is reduced to the solution of a ...
Fengxin Chen, Minghui Yang, Zhaojie Zhou
doaj   +3 more sources

Multiple Solutions for a Singular Quasilinear Elliptic System

open access: yesThe Scientific World Journal, 2013
We consider the multiplicity of nontrivial solutions of the following quasilinear elliptic system , , , , , where , , , , , . The functions , , , , , , and satisfy some suitable conditions. We will prove that the problem has at least two nontrivial
Lin Chen, Caisheng Chen, Zonghu Xiu
doaj   +2 more sources

Multiple nonsymmetric nodal solutions for quasilinear Schrödinger system [PDF]

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2022
In this paper, we consider the quasilinear Schrödinger system in $\mathbb R^{N}$ ($N\geq3$): \begin{equation*} \begin{cases} -\Delta u+ A(x)u-\frac{1}{2}\Delta(u^{2})u=\frac{2\alpha }{\alpha+\beta}|u|^{\alpha-2}u|v|^{\beta},\\ -\Delta v+ Bv-\frac{1}{2}\
Jianqing Chen, Qian Zhang
doaj   +2 more sources

A subsolution-supersolution method for quasilinear systems

open access: yesElectronic Journal of Differential Equations, 2005
Assuming that a system of quasilinear equations of gradient type admits a strict supersolution and a strict subsolution, we show that it also admits a positive solution.
Dimitrios A. Kandilakis   +1 more
doaj   +1 more source

Evaluation of Resorcinarene Trimer Methanesulfonate Aggregation in the Presence of Inorganic Salts and Biomolecules in Aqueous Solutions Using UV-vis Spectroscopy and Electrophoresis. [PDF]

open access: yesChemphyschem
UV–vis spectra of resorcinarene trimer methanesulfonate were identified in the presence of inorganic salts, choline, and bovine serum albumin. The origin of the peaks was identified. The absorption dynamic over the course of 5 days revealed that Na+ cations promote supramolecular aggregation while choline hinders it.
Shepelytskyi Y   +11 more
europepmc   +2 more sources

Existence of solutions for a coupled quasilinear system on time scales

open access: yesElectronic Journal of Differential Equations, 2011
In this work we study a quasilinear system of equations on time scales. Using the Krasnoselskii fixed-point theorem, sufficient conditions are given for the existence of positive solutions.
Moulay Rchid Sidi Ammi   +1 more
doaj   +1 more source

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