Second order equations with nonnegative characteristic form [by] O.A. Oleǐnik and E.V. Radkevič.
Subtitle: Translated from Russian by Paul C. Fife.
Contributors: Radkevich, E. V.,
Publisher: American Mathematical Society
Published: 1973
Place of publication: Providence, R.I
Language: eng
Number of pages: 259
Subjects: Boundary value problems; Differential equations, Partial