Global Carleman Estimates for Degenerate Parabolic Operat...
Cannarsa, P. / Martinez, P. / Vancostenoble, J. Introduces the reader to global Carleman estimates for a class of parabolic operators which may degenerate at the boundary of the space domain, in the normal direction to the boundary. Such a kind of degeneracy is relevant to study the invariance of a domain with respect to a given stochastic diffusion flow, and appears naturally in climatology models.