On knots in subdivergent diagrams

Abstract

We investigate Feynman diagrams which are calculable in terms of generalized one-loop functions, and explore how the presence or absence of transcendentals in their counterterms reflects the entanglement of link diagram constructed from them and explains unexpected relations between them.

Comments: 15 pages, latex, uses epsf for 10 figs. To appear in Z.Phys.C, results now discussed from the point of view of Gauss codes