Lectures on Partial Differential Equations by I. G. Petrovsky

Partial Differential Equations of Mathematical Physics - PB 1966 2nd, corrected

Lot of 2 Vtg DIFFERENTIAL EQUATIONS Books Salvadori Schwarz 1956 Phillips 1956

Ordinary Differential Equations by E. L. Ince 1956 Dover Publications paperback

tpb THEORY OF FUNCTIONALS, INTEGRAL INTEGRO-DIFFERENTIAL EQUATIONS Vito Volterra

Applied Differential Equations by Spiegel 2nd Ed 1967 OLD VINTAGE MATH BOOK

THEORY & PROBLEMS OF DIFFERENTIAL EQUATIONS Schaum's Outline Series 2nd Edition

Elementary Matrices and Some Applications to Dynamics and Differential Equations