Functional inequalities for a family of infinite-dimensional diffusions with degenerate noise

Autor: Baudoin, Fabrice, Gordina, Maria, Herzog, David, Kim, Jina, Melcher, Tai
Rok vydání: 2023
Předmět:
Druh dokumentu: Working Paper
Popis: For a family of infinite-dimensional diffusions with degenerate noise, we develop a modified $\Gamma$ calculus on finite-dimensional projections of the equation in order to produce explicit functional inequalities that can be scaled to infinite dimensions. The choice of our $\Gamma$ operator appears canonical in our context, as the estimates depend only on the induced control distance. We apply the general analysis to a number of examples, exploring implications for quasi-invariance and uniqueness of stationary distributions.
Comment: 35 pages
Databáze: arXiv