  2005 - An Introduction to Partial Differential Equations (Paperback) → Hardcover ISBN-13: 9780521613231 ISBN-10: 052161323X Genre: Science & Math ?  2005 - An Introduction to Partial Differential Equations (Hardcover) → Paperback ISBN-13: 9780521848862 ISBN-10: 0521848865 Genre: Science & Math ?  1995 - Manifolds with Group Actions and Elliptic Operators [Memoirs of the American Mathematical Society, 540] (Paperback) ISBN-13: 9780821826041 ISBN-10: 0821826042 Genre: Science & Math ? |
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