Abstract
We study the following quasilinear partial differential equation with two subdifferential operators:
Acknowledgements
The author wishes to express his thanks to Rainer Buckdahn and Aurel Ră¸canu for their useful suggestions and discussions and to Lucian Maticiuc for his remarks.
Notes
1. Let and . Denote by the set of triples ( denotes the set of all symmetric non-negative matrices), such that we call the parabolic super-jet of at . Similarly, we define the parabolic sub-jet of at denoted by as the set of triples such that