The Dirichlet Problem for Elliptic-Hyperbolic Equations of Keldysh Type

by Otway, Thomas H., Otway, Thomas H.
Published 2012

Elliptic–Hyperbolic Partial Differential Equations A Mini-Course in Geometric and Quasilinear Methods /

by Otway, Thomas H., Otway, Thomas H.
Published 2015