Geometric description of a relativistic string. (English. Russian original) Zbl 1031.81629

Theor. Math. Phys. 123, No. 1, 446-450 (2000); translation from Teor. Mat. Fiz. 123, No. 1, 38-43 (2000).
Summary: Classical three-dimensional relativistic string theory is considered in terms of world sheet quadratic forms. Taking the second quadratic form, not only the first one, into account is essential. A system of nonlinear evolution equations describing the string dynamics at the surface of primary constraints in a conformally invariant manner is derived. The results are generalized to the four-dimensional case.


81T30 String and superstring theories; other extended objects (e.g., branes) in quantum field theory
83E30 String and superstring theories in gravitational theory
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