Pathlike Co/Bialgebras and their Antipodes with Applications to Bi- and Hopf Algebras Appearing in Topology, Number Theory and Physics

Symmetry Integrability and Geometry-Methods and Applications

article

Ralph M. Kaufmann¹  Yang Mo¹ 

[1] Department of Mathematics, Purdue University;Department of Physics and Astronomy, Purdue University

关键词: Feynman category;    bialgebra;    Hopf algebra;    antipodes;    renomalization;    characters;    combinatorial coalgebra;    graphs;    trees;    Rota-Baxter;    colored structures.;   

DOI  :  10.3842/SIGMA.2022.053

来源: National Academy of Science of Ukraine

【 摘 要 】

We develop an algebraic theory of colored, semigrouplike-flavored and pathlike co-, bi- and Hopf algebras. This is the right framework in which to discuss antipodes for bialgebras naturally appearing in combinatorics, topology, number theory and physics. In particular, we can precisely give conditions for the invertibility of characters that is needed for renormalization in the formulation of Connes and Kreimer. These are met in the relevant examples. In order to construct antipodes, we discuss formal localization constructions and quantum deformations. These allow to define and explain the appearance of Brown style coactions. Using previous results, we can interpret all the relevant coalgebras as stemming from a categorical construction, tie the bialgebra structures to Feynman categories, and apply the developed theory in this setting.

【 授权许可】

Unknown