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Your search keyword '"A. J. Feitosa"' showing total 3 results
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3 results on '"A. J. Feitosa"'

1. On a nonlinear coupled system with internal damping

Author

R. F. Apolaya, H. R. Clark, and A. J. Feitosa

Subjects
Nonlinear system, internal damping, asymptotic behavior., Mathematics, QA1-939
Abstract

The purpose of this paper is to establish existence, uniqueness, and asymptotic behavior of solutions of a non-linear coupled system with variable coefficients, with coupling of a non-linear wave equation, and a linear heat equation in a smooth-bounded-open domain of $R^n$.

Published
2000

2. A boundary obstacle problem for the Mindlin-Timoshenko system

Author

F. D. Araruna, Milton de Lacerda Oliveira, and A. J. Feitosa

Subjects
General Mathematics, media_common.quotation_subject, Obstacle problem, General Engineering, Zero (complex analysis), Calculus, Boundary (topology), Applied mathematics, Infinity, Mathematics::Numerical Analysis, media_common, Mathematics
Abstract

We consider the dynamical one-dimensional Mindlin–Timoshenko model for beams. We study the existence of solutions for a contact problem associated with the Mindlin–Timoshenko system. We also analyze how its energy decays exponentially to zero as time goes to infinity. Copyright © 2008 John Wiley & Sons, Ltd.

Published
2009

3. Beam evolution equation with variable coefficients

Author

J. Límaco, A. J. Feitosa, and H. R. Clark

Subjects
Partial differential equation, General Mathematics, Weak solution, Mathematical analysis, General Engineering, Initial value problem, Boundary value problem, Uniqueness, Action (physics), Beam (structure), Mathematics, Variable (mathematics)
Abstract

We investigate a initial-boundary value problem for the nonlinear beam equation with variable coefficients on the action of a linear internal damping. We show the existence of a unique global weak solution and that the energy associated with this solution has a rate decay estimate. Besides, we prove the existence and uniqueness of non-local strong solutions. Copyright © 2004 John Wiley & Sons, Ltd.

Published
2004

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