Courant, R. Methods of mathematical physics : Partial differential equations / by R. Courant and D. Hilbert - New Delhi: Wiley India Pvt. Ltd., 2008. - xxii, 830p. ISBN: 9788126515783 Subjects--Topical Terms: Differential equationsHyperbolicityLinear systemPhysics Dewey Class. No.: 530.15 / COU/M