Institute of Mathematics and Informatics Bulgarian Academy of Sciences
Citation:
Pliska Studia Mathematica Bulgarica, Vol. 15, No 1, (2003), 67p-84p
Abstract:
We propose an approach based on methods from microlocal analysis, for characterizing the hypoellipticity in C°° and Gevrey classes of semilinear anisotropic partial differential operators with multiple characteristics, in dimension n > 3.