Results 11 to 20 of about 65,332 (306)

A cantilever equation with nonlinear boundary conditions [PDF]

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2009
We prove new results on the existence of positive solutions for some cantilever equation subject to nonlocal and nonlinear boundary conditions. Our main ingredient is the classical fixed point index.
Gennaro Infante, P. Pietramala
doaj   +2 more sources

Parabolic Problems with Nonlinear Boundary Conditions and Critical Nonlinearities

open access: yesJournal of Differential Equations, 1999
The authors study the nonlinear parabolic problem \[ \begin{gathered} \frac {\partial u}{\partial t} =\Delta u + f(u) \text{ in } \Omega\times(0,T), \\ \frac {\partial u}{\partial \nu} = g(u) \text{ on } \partial\Omega\times(0,T), \\ u(\cdot,0) = u_0 \text{ in } \Omega, \end{gathered} \] where \(\Omega \subset \mathbb R^N\) has unit outer normal \(\nu\)
Arrieta, José M   +2 more
openaire   +2 more sources

Doubly Nonlinear Parabolic Equation with Nonlinear Boundary Conditions

open access: yesJournal of Mathematical Analysis and Applications, 2001
A necessary and sufficient condition for global existence of all positive classical solutions is given. The proof relies on the construction of suitable upper and lower solutions.
Wang, Shu, Deng, Jucheng, Shi, Jine
openaire   +3 more sources

Boundary oscillations and nonlinear boundary conditions [PDF]

open access: yesComptes Rendus. Mathématique, 2006
We study how oscillations in the boundary of a domain affect the behavior of solutions of elliptic equations with nonlinear boundary conditions of the type ∂ u
Arrieta, Jose M., Bruschi, Simone M.
openaire   +4 more sources

On the Parametrization of Caputo-Type Fractional Differential Equations with Two-Point Nonlinear Boundary Conditions

open access: yesMathematics, 2019
In this paper, we offer a new approach of investigation and approximation of solutions of Caputo-type fractional differential equations under nonlinear boundary conditions.
Nazım I. Mahmudov   +2 more
doaj   +2 more sources

A Note on a Beam Equation with Nonlinear Boundary Conditions [PDF]

open access: yesBoundary Value Problems, 2011
The existence of multiple positive solutions for a fourth order beam equation under nonlocal and nonlinear boundary conditions is proved. The results are obtained by the use of fixed point index theory to a perturbed Hammerstein integral equation that is equivalent to the original problem.
Paolamaria Pietramala   +1 more
openaire   +8 more sources

Asymptotic behavior of solutions to nonlinear parabolic equation with nonlinear boundary conditions

open access: yesElectronic Journal of Differential Equations, 2008
We show that solutions of a nonlinear parabolic equation of second order with nonlinear boundary conditions approach zero as t approaches infinity. Also, under additional assumptions, the solutions behave as a function determined here.
Diabate Nabongo, Theodore K. Boni
doaj   +2 more sources

Generalized quasilinearization method for a second order three point boundary-value problem with nonlinear boundary conditions

open access: yesElectronic Journal of Differential Equations, 2002
The generalized quasilinearization technique is applied to obtain a monotone sequence of iterates converging uniformly and quadratically to a solution of three point boundary value problem for second order differential equations with nonlinear boundary ...
Bashir Ahmad   +2 more
doaj   +2 more sources

Random Differential Equations With Nonlinear Boundary Conditions

open access: yes, 2022
We discuss the first order random functional differential equation subject to nonlinear boundary conditions with discontinuity under the existence of extremal random solution.
P.G. Swami , D.S. Palimkar
core   +1 more source

The investigation of solutions for nonlinear system of differential equations with boundary conditions [PDF]

open access: yesمجلة التربية والعلم, 2007
In this paper we investigate the existence and approximation for nonlinear system of differential equations with boundary conditions by using the numerical-analytic method for investigate of a periodic solutions which is given by Samoilenko A. M.
R.N. Butris, Azzam salahdin younis
doaj   +1 more source

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