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An approach to the calculation of many-loop massless Feynman integrals
Teoretičeskaâ i matematičeskaâ fizika, Tome 62 (1985) no. 3, pp. 345-358 Cet article a éte moissonné depuis la source Math-Net.Ru

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A generalization of the identity of dimensionless regularization, $\int d^{D}k(k^2)^{-\alpha}=0$, $\alpha\ne D/2$ is proposed. The generalization is used to divide the complete set of dimensionally (and analytically) regularized Feynman integrals with one external momentum into classes of equal integrals, and also for calculating some of them. A nontrivial symmetry of the propagator integrals is revealed, on the basis of which a complete system of functional equations for determining two-loop integrals is derived. Possible generalizations of these equations are discussed. 
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     author = {S. G. Gorishnii and A. P. Isaev},
     title = {An approach to the calculation of many-loop massless {Feynman} integrals},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {345--358},
     year = {1985},
     volume = {62},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1985_62_3_a2/}
}
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S. G. Gorishnii; A. P. Isaev. An approach to the calculation of many-loop massless Feynman integrals. Teoretičeskaâ i matematičeskaâ fizika, Tome 62 (1985) no. 3, pp. 345-358. http://geodesic.mathdoc.fr/item/TMF_1985_62_3_a2/

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