From Mobius inversion to renormalisation
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From Mobius inversion to renormalisation. / Kock, Joachim.
I: Communications in Number Theory and Physics, Bind 14, Nr. 1, 2020, s. 171-198.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - From Mobius inversion to renormalisation
AU - Kock, Joachim
PY - 2020
Y1 - 2020
N2 - This paper traces a straight line from classical Mobius inversion to Hopf-algebraic perturbative renormalisation. This line, which is logical but not entirely historical, consists of just a few main abstraction steps, and some intermediate steps dwelled upon for mathematical pleasure. The paper is largely expository, but contains many new perspectives on well-known results. For example, the equivalence between the Bogoliubov recursion and the Atkinson formula is exhibited as a direct generalisation of the equivalence between the Weisner-Rota recursion and the Hall-Leroux formula for Mobius inversion.
AB - This paper traces a straight line from classical Mobius inversion to Hopf-algebraic perturbative renormalisation. This line, which is logical but not entirely historical, consists of just a few main abstraction steps, and some intermediate steps dwelled upon for mathematical pleasure. The paper is largely expository, but contains many new perspectives on well-known results. For example, the equivalence between the Bogoliubov recursion and the Atkinson formula is exhibited as a direct generalisation of the equivalence between the Weisner-Rota recursion and the Hall-Leroux formula for Mobius inversion.
KW - Mobius inversion
KW - perturbative renormalisation
KW - bialgebras
KW - coalgebras
KW - ROTA-BAXTER ALGEBRAS
KW - QUANTUM-FIELD THEORY
KW - HOPF-ALGEBRAS
M3 - Journal article
VL - 14
SP - 171
EP - 198
JO - Communications in Number Theory and Physics
JF - Communications in Number Theory and Physics
SN - 1931-4523
IS - 1
ER -
ID: 331497812