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This book 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 without solutions.

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Fourth Edition

F. John

Partial Differential Equations

"An excellent second-reading text. Should be accessible to any mathematician. Highly recommended."

-THE MATHEMATICAL GAZETTE
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