Results 11 to 20 of about 2,321 (137)

Topological Quasilinear Spaces

open access: yesAbstract and Applied Analysis, 2012
We introduce, in this work, the notion of topological quasilinear spaces as a generalization of the notion of normed quasilinear spaces defined by Aseev (1986). He introduced a kind of the concept of a quasilinear spaces both including a classical linear
Yılmaz Yılmaz   +2 more
doaj   +1 more source

New Inner Product Quasilinear Spaces on Interval Numbers

open access: yesJournal of Function Spaces, 2016
Primarily we examine the new example of quasilinear spaces, namely, “IRn interval space.” We obtain some new theorems and results related to this new quasilinear space.
Hacer Bozkurt, Yılmaz Yilmaz
doaj   +1 more source

Existence of ground state solutions for a class of quasilinear elliptic systems in Orlicz-Sobolev spaces

open access: yesBoundary Value Problems, 2017
In this paper, we investigate the following nonlinear and non-homogeneous elliptic system: { − div ( a 1 ( | ∇ u | ) ∇ u ) + V 1 ( x ) a 1 ( | u | ) u = F u ( x , u , v ) in  R N , − div ( a 2 ( | ∇ v | ) ∇ v ) + V 2 ( x ) a 2 ( | v | ) v = F v ( x , u ,
Liben Wang, Xingyong Zhang, Hui Fang
doaj   +1 more source

Notes on the Solutions of the First Order Quasilinear Differential Equations

open access: yesRatio Mathematica, 2018
The system of the quasilinear differential first order equations with the antisymetric matrix and the same element f (t,x(t)) on the main diagonal have the property that r'(t) = f (t,x(t))r(t), where r(t) ≥ 0 is the po- lar function of the system.
Alena Vagaská, Dusan Mamrilla
doaj   +1 more source

Expanding-box Quasilinear Model of the Solar Wind

open access: yesThe Astrophysical Journal, 2023
The expanding-box model of the solar wind has been adopted in the literature within the context of magnetohydrodynamics, hybrid, and full particle-in-cell simulations to investigate the dynamic evolution of the solar wind.
J. Seough   +3 more
doaj   +1 more source

Stability and instability of the quasilinear Gross-Pitaevskii dark solitons*** [PDF]

open access: yesESAIM: Proceedings and Surveys
We study a quasilinear Schrödinger equation with nonzero conditions at infinity. In previous works, we obtained a continuous branch of traveling waves, given by dark solitons indexed by their speed. Neglecting the quasilinear term, one recovers the Gross-
Le Quiniou Erwan
doaj   +1 more source

Ground state solutions for a quasilinear Kirchhoff type equation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
We study the ground state solutions of the following quasilinear Kirchhoff type equation \[ -\left(1+b\int_{\mathbb{R}^{3}}|\nabla u|^2dx\right)\Delta u + V(x)u-[\Delta(u^2)]u=|u|^{10}u+\mu |u|^{p-1}u,\qquad x\in \mathbb{R}^3, \] where $b\geq 0$ and $\mu$
Hongliang Liu, Haibo Chen, Qizhen Xiao
doaj   +1 more source

Numerical Investigation of a Diffusive SIR Model: Focus on Positivity Preservation

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this paper, we consider a system of semilinear partial differential equations (PDEs) representing a spatially extended SIR epidemic model. A brief analytical investigation of the well‐posedness and positivity of the solutions is provided in the appendix, while the main focus is on the numerical treatment of the model.
Rahele Mosleh   +2 more
wiley   +1 more source

Wave–particle interactions in tokamaks

open access: yesNuclear Fusion
Transport consequences of the wave–particle interactions in the quasilinear plateau (QP) regime are presented. Eulerian approach is adopted to solve the drift kinetic equation that includes the physics of the nonlinear trapping (NT) and QP regimes.
K.C. Shaing   +3 more
doaj   +1 more source

CONVEXITY OF REACHABLE SETS OF QUASILINEAR SYSTEMS

open access: yesUral Mathematical Journal, 2023
This paper investigates convexity of reachable sets for quasilinear systems under integral quadratic constraints. Drawing inspiration from B.T. Polyak's work on small Hilbert ball image under nonlinear mappings, the study extends the analysis to ...
Ivan Osipov
doaj   +1 more source

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