“An excellent text upon which to build and introduction to partial differential equations at the graduate level. In addition…recommended for the nonspecialist.” – American Mathematical Monthly

Partial Differential Equations is a very well accepted introduction to the subject. In it, the author identifies the significant aspects of the theory and explores them with a limited amount of machinery from mathematical analysis. Now, in this fourth edition, the book has again been updated with an additional chapter on Lewy’s example of a linear equation with solutions.

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