Results 21 to 30 of about 2,990 (216)

Dichotomy and almost automorphic solution of difference system

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2013
We study almost automorphic solutions of recurrence relations with values in a Banach space $V$ for quasilinear almost automorphic difference systems.
Samuel Castillo, Manuel Pinto
doaj   +1 more source

Observers for the quasi-linear systems

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2010
The problem of quasi-linear systems stabilization in the case of incomplete feedback is considered. While synthesising a stabilizing control, estimation of a current state vector-is applied. To design this estimation, observers are constructed.
Yakov A Shakhov
doaj   +3 more sources

Existence for (p, q) critical systems in the Heisenberg group

open access: yesAdvances in Nonlinear Analysis, 2019
This paper deals with the existence of entire nontrivial solutions for critical quasilinear systems (𝓢) in the Heisenberg group ℍn, driven by general (p, q) elliptic operators of Marcellini types.
Pucci Patrizia, Temperini Letizia
doaj   +1 more source

On some multicomponent quasilinear elliptic systems [PDF]

open access: yes, 2020
The paper contains some Liouville theorems for second order multicomponent quasilinear elliptic systems of equations or inequalities in associated to general nonlinearities.
Lorenzo D'Ambrosio   +3 more
core   +1 more source

On quasilinear parabolic systems

open access: yesMathematische Annalen, 1988
We prove local existence results for second order quasilinear parabolic systems with nonlinear boundary conditions in the class \[ C^{1+\alpha}([t_ 0,\tau],[L^ p(\Omega)]^ N)\cap C^{\alpha}([t_ 0,\tau],[W^{2,p}(\Omega)]^ N), \] where \(\alpha\) \(\in]0,[\), \(p>n\). Further space regularity properties are also shown.
ACQUISTAPACE, PAOLO, TERRENI B.
openaire   +3 more sources

On general nonlinear and quasilinear unanticipative feedback systems [PDF]

open access: yes, 1969
summary:The paper deals with fundamental properties of nonlinear and quasilinear unanticipative feedback systems; theorems concerning the existence of the over-all transfer operator and input-output boundedness and stability are ...
Doležal, Václav
core   +1 more source

Infinitely many solutions for a class of quasilinear two-point boundary value systems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
The existence of infinitely many solutions for a class of Dirichlet quasilinear elliptic systems is established. The approach is based on variational methods.
Giuseppina D'Aguì   +2 more
doaj   +1 more source

Nonlinear models of wave processes in the dimension (1 + 1) and first order quasilinear equations

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки, 2023
Background. The study considers the connection of models of nonlinear wave processes in various one-dimensional physical systems, such as nonlinear two-wire lines, with first order quasilinear equations.
Viktor M. Zhuravlev
doaj   +1 more source

Quasilinear elliptic systems [PDF]

open access: yesAnnali di Matematica Pura ed Applicata (1923 -), 1978
The quasilinear elliptic system $$\sum\limits_{l{\text{ = 1}}}^n {\frac{\partial }{{\partial x_l }}\left\{ {\sum\limits_{j = 1}^N {\sum\limits_{m = 1}^n {C_{ij}^{lm} [x,U]\frac{{\partial U^j }}{{\partial x_m }} + B_i^l [x,U]} } } \right\} + F_i [x,U] = 0} $$
openaire   +1 more source

Riemann Invariants and Rank-k Solutions of Hyperbolic Systems

open access: yes, 2006
In this paper we employ a "direct method" in order to obtain rank-k solutions of any hyperbolic system of first order quasilinear differential equations in many dimensions.
Huard, Benoit, Grundland, A. Michel
core   +1 more source

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