J ul 2 00 0 On the Hopf algebraic origin of Wick normal-ordering

@inproceedings{Fauser2000JU2,
  title={J ul 2 00 0 On the Hopf algebraic origin of Wick normal-ordering},
  author={Bertfried Fauser},
  year={2000}
}
A combinatorial formula of G.-C. Rota and J.A. Stein is taken to perform Wickre-ordering in quantum field theory. Wick’s theorem becomes a Hopf algebraic identity called Cliffordization. The combinatorial method relying on Hopf algebras is highly efficient in computations and yields closed algebraic expressions. AMS Subject Classifications 2000: 81R50; 16W30 
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