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This textbook provides beginning graduate students and advanced undergraduates with an accessible introduction to the rich subject of partial differential equations (PDEs). It presents a rigorous and clear explanation of the more elementary theoretical aspects of PDEs, while also drawing connections to deeper analysis and applications. The book serves as a needed bridge between basic undergraduate texts and more advanced books that require a significant background in functional analysis.

Topics include first order equations and the method of characteristics, second order linear...

Hedy Lamarr's exotic beauty was heralded across Europe in the early 1930s. Yet she became infamous for her nude scenes in the scandalous movie Ecstasy. Trapped in a marriage to one of Austria's munitions barons, a friend of Mussolini's who hid his Jewish heritage to become an "honorary Aryan" at the onset of World War II, Lamarr fled Europe for Hollywood, where she was transformed into one of film's most glamorous celebrities, appearing opposite such actors as Clark Gable, Spencer Tracy, and James Stewart. As her career faded, she went from one husband to the next, her personal...