On contact equivalence of holomorphic Monge-Ampére equations.
On the -singularities of regular holonomic distributions
The analytic and wave-front sets of a distribution which is a solution of a regular holonomic differential system are shown to coincide. More generally, we give comparison theorems for solutions of a regular holonomic system of microdifferential equations in various spaces of microfunctions, as a simple extension of a result of Kashiwara.
Operatori differenziali a coefficienti costanti di tipo iperbolico-(ipo)ellittico