A Three Parameter Hopf Deformation of the Algebra of Feynman-like Diagrams

Gérard Henry Edmond Duchamp, Pawel Blasiak, Andrzej Horzela +2

We construct a three-parameter deformation of the Hopf algebra $\LDIAG$. This is the algebra that appears in an expansion in terms of Feynman-like diagrams of the {\em product form…