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Hopf algebras and the combinatorics of c...
Mestre, Angela...
Hopf algebras and the combinatorics of connected graphs in quantum field theory by Mestre, Angela ( Author )
N.A
07-08-2008
In this talk, we are concerned with the formulation and understanding of the combinatorics of time-ordered n-point functions in terms of the Hopf algebra of field operators. Mathematically, this problem can be formulated as one in combinatorics or graph theory. It consists in finding a recursive algorithm that generates all connected graphs in their Hopf algebraic representation. This representation can be used directly and efficiently in evaluating Feynman graphs as contributions to the n-point functions.
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https://arxiv.org/abs/0808.1070
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