This graduate-level text offers a systematic presentation of the path integral approach to calculating transition elements, partition functions, and source functionals. Topics include Grassmann variables, field and gauge field theory, perturbation theory, and nonperturbative results. Requires only some familiarity with quantum mechanics. Numerous exercises. Ideal as course supplement or for independent study. 1992 edition.
by Mark Twain
by Ulysses S. Grant
by Henry David Thoreau
by Charles Darwin
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