14 research outputs found
Global attractors for strongly damped wave equations with displacement dependent damping and nonlinear source term of critical exponent
In this paper the long time behaviour of the solutions of 3-D strongly damped
wave equation is studied. It is shown that the semigroup generated by this
equation possesses a global attractor in H_{0}^{1}(\Omega)\times L_{2}(\Omega)
and then it is proved that this global attractor is a bounded subset of
H^{2}(\Omega)\times H^{2}(\Omega) and also a global attractor in
H^{2}(\Omega)\cap H_{0}^{1}(\Omega)\times H_{0}^{1}(\Omega)
Periodic Jacobi operator with finitely supported perturbation on the half-lattice
We consider the periodic Jacobi operator with finitely supported
perturbations on the half-lattice. We describe all eigenvalues and resonances
of and give their properties. We solve the inverse resonance problem: we
prove that the mapping from finitely supported perturbations to the Jost
functions is one-to-one and onto, we show how the Jost functions can be
reconstructed from the eigenvalues, resonances and the set of zeros of
S(\l)-1, where S(\l) is the scattering matrix.Comment: 29 page
Long-Time Behaviour of Doubly Nonlinear Parabolic Equations
We consider a doubly nonlinear parabolic equation in R-n. Under suitable hypotheses we prove that a semigroup generated by this equation possesses a global attractor.WoSScopu
Long-Time Behaviour of Wave Equations with Nonlinear Interior Damping
We prove the existence of attractors for higher dimensional wave equations with nonlinear interior damping which grows faster than polynomials at infinity.WoSScopu
Global Attractor For The One Dimensional Wave Equation With Displacement Dependent Damping
We study the long-time behavior of solutions of the one dimensional wave equation with nonlinear damping coefficient. We prove that if the damping coefficient function is strictly positive near the origin then this equation possesses a global attractor. (C) 2011 Elsevier Ltd. All rights reserved