Results 81 to 90 of about 2,627,124 (242)

Bounded solutions of nonlinear hyperbolic equations with time delay

Electronic Journal of Differential Equations, 2018
We consider the initial value problem $$\displaylines{ \frac{d^{2}u}{dt^{2}}+Au(t)=f(u(t),u(t-w)), \quad t>0, \cr u(t)=\varphi (t),\quad -w\leq t\leq 0 }$$ for a nonlinear hyperbolic equation with time delay in a Hilbert space with the self adjoint
Allaberen Ashyralyev, Deniz Agirseven
doaj  

Eigenvalue problem for nonlinear elastic beam equation of fractional order [PDF]

, 2017
In this study, under some suitable assumptions, we determine an explicit eigenvalue interval for the existence of positive solution of singular fractional-order nonlinear elastic beam equation with bending term.
Khodabakhshi, Neda, Vaezpour, S. Mansour Mansour   +1 more
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Nonlinear Self-Adjointness and Conservation Laws for the Hyperbolic Geometric Flow Equation

, 2015
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)We study the nonlinear self-adjointness of a class of quasilinear 2D second order evolution equations by applying the method of Ibragimov. Which enables one to establish the conservation
Silva, KAA
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On a parabolic-hyperbolic Penrose-Fife phase-field system

Electronic Journal of Differential Equations, 2002
The initial and boundary value problem is studied for a non-conserved phase-field system derived from the Penrose-Fife model for the kinetics of phase transitions.
Pierluigi Colli, Maurizio Grasselli, Akio Ito   +2 more
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Relative entropy methods for hyperbolic and diffusive limits [PDF]

, 2012
We review the relative entropy method in the context of hyperbolic and diffusive relaxation limits of entropy solutions for various hyperbolic models.
Tzavaras, Athanasios E., Lattanzio, Corrado   +1 more
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Special Generalized Trigonometric and Hyperbolic Function Solutions of the Space-Time Fractional Nonlinear Dispersive Modified Benjamin-Bona-Mahony Equation

Journal of Advanced Research in Natural and Applied Sciences
In mathematical physics, the nonlinear dispersive modified Benjamin-Bono-Mahony equation is an essential nonlinear evolution equation. This paper employs the Sardar sub-equation approach to derive the analytic solutions of the space-time fractional ...
Sevil Çulha Ünal
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Convergence of a high-order compact finite difference scheme for a nonlinear Black-Scholes equation [PDF]

A high-order compact finite difference scheme for a fully nonlinear parabolic differential equation is analyzed. The equation arises in the modeling of option prices in financial markets with transaction costs.
Michel Fournié, Ansgar Jüngel, Bertram Düring   +2 more
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New explicit solutions for the nonlinear fractional Klein-Gordon equation

四川大学学报. 自然科学版, 2017
This paper discuss a new approach of $(G'/G)$-expansion method for constructing more general exact solutions of nonlinear fractional Klein-Gordon equation. By using the fractional complex transformation,the nonlinear fractional Klein-Gordon equation have
LI Zhao, SUN Yu-Huai, ZHANG Xue, Zhang Jian, HUANG Chun   +4 more
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Almost periodic solutions of nonlinear hyperbolic equations with time delay

Electronic Journal of Differential Equations, 2001
The almost periodicity of bounded solutions is established for a nonlinear hyperbolic equation with piecewise continuous time delay. The equation represents a mathematical model for the dynamics of gas absorption.
Hushang Poorkarimi, Joseph Wiener
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A boundary value problem in the hyperbolic space

Abstract and Applied Analysis, 1999
We consider a nonlinear problem for the mean curvature equation in the hyperbolic space with a Dirichlet boundary data g. We find solutions in a Sobolev space under appropriate conditions on g.
P. Amster, G. Keilhauer, M. C. Mariani
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