Physics has long been regarded as a wellspring of mathematical problems. ++Mathematical Methods in Physics++((kursiv)) is a self-contained presentation, driven by historic motivations, excellent examples, detailed proofs, and a focus on those parts of mathematics that are needed in more ambitious courses on quantum mechanics and classical and quantum field theory. Aimed primarily at a broad community of graduate students in mathematics, mathematical physics, physics and engineering, as well as researchers in these disciplines. A comprehensive bibliography and index round out the work.