The generalized Crewther relation: the peculiar aspects of the analytical perturbative QCD calculations

Abstract

We summarize the current status of our understanding of the structure of the perturbative QCD expressions for the QCD generalization of the Crewther relation.

arXiv comment22 pages, LATEX; Invited talk at the Workshop ``Continuous Advances in QCD'', Minneapolis, March 28-31, 1996; to be published in the Proceedings

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