Partial differential equations and systems not solvable with respect to the highest-order derivative

Gennadii V. Demidenko, Stanislav V. Upsenskii0824740394, 9780824740399, 9780824748517

The first to introduce a classification of equations and systems not solved with respect to the higher-order derivative, and studies boundary-value problems for these classes of equations. Includes mathematical results from S.L. Sobolev’s study on the small oscillations of a rotating fluid.