Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4590518 | Journal of Functional Analysis | 2012 | 40 Pages |
Abstract
We study the problem of convergence to equilibrium for evolution equations associated to general quadratic operators. Quadratic operators are non-selfadjoint differential operators with complex-valued quadratic symbols. Under appropriate assumptions, a complete description of the spectrum of such operators is given and the exponential return to equilibrium with sharp estimates on the rate of convergence is proven. Some applications to the study of chains of oscillators and to the generalized Langevin equation are given.
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory