Geodesic
General representation of physical quantities in scheme-invariant perturbation theory and its optimization
Teoretičeskaâ i matematičeskaâ fizika, Tome 70 (1987) no. 2, pp. 226-233

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Solution of the complete renormalization group equation for a dimensionless physical quantity in the renormalization scheme-invariant perturbation theory is given. On its basis we obtain the improved power-series expansions of this quantity in powers of its two-loop approximant and a certain function introduced in the paper. General and optimized representations of moments of nonsinglet structure functions are derived. 
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     author = {V. I. Vovk and S. I. Maximov},
     title = {General representation of physical quantities in scheme-invariant perturbation theory and its optimization},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
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V. I. Vovk; S. I. Maximov. General representation of physical quantities in scheme-invariant perturbation theory and its optimization. Teoretičeskaâ i matematičeskaâ fizika, Tome 70 (1987) no. 2, pp. 226-233. http://geodesic.mathdoc.fr/item/TMF_1987_70_2_a7/