Anthony Réveillac (INSA Toulouse)
Tetiana Zinchenko (Chernihiv, Ukraine)
Elliptic theory on compact closed manifolds is usually developed in the scale of Sobolev spaces $H^s(\Gamma, V)$, where $V$ is a smooth vector bundle over $\Gamma$ and $s$ is a real number. Some parts of the elliptic theory require a more refined scale of function spaces. These spaces are obtained from the Sobolev ones by interpolation with functional parameter, to wit, $H^\varphi (\Gamma, V)$ . The talk is devoted to discussion of these interpolation spaces and elliptic operators between them.