Calculus of Variations and Partial Differential Equations of the First Order

PARTIAL DIFFERENTIAL EQUATIONS OF FIRST ORDER AND THEIR APPLICATIONS TO PHYSICS

Fritz John Plane Waves and Spherical Means Partial Differential Equations Verlag

Elementary Differential Equations Boundary Value Problems Boyce DiPrima 1977

Introduction to Partial Differential Equations by Don Greenspan (1961 hardcover)

Calculus of Variations and Partial Differential Equations of the First Order, Pa

Partial Differential Equations (1965) ~ Hans Weinberger ~ Hardcover ~Dust Jacket

Laplace transforms and their applications to differential equations by N. W. McL