Geodesic
Geometric description of a relativistic string
Teoretičeskaâ i matematičeskaâ fizika, Tome 123 (2000) no. 1, pp. 38-43

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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. 
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     author = {S. V. Talalov},
     title = {Geometric description of a relativistic string},
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     number = {1},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2000_123_1_a2/}
}
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S. V. Talalov. Geometric description of a relativistic string. Teoretičeskaâ i matematičeskaâ fizika, Tome 123 (2000) no. 1, pp. 38-43. http://geodesic.mathdoc.fr/item/TMF_2000_123_1_a2/