title: Feynman diagrams and Wick products associated with q-Fock space.
abstract: It is shown that if one keeps track of crossings, Feynman diagrams can be used to compute the q-Wick products and usual operator products in terms of each other.
authors.affiliation: Department of Mathematics, University of California, Los Angeles, CA 90095-1555, USA. ege@math.ucla.edu
authors.forename: Edward G
authors.initials: EG
authors.lastname: Effros
authors.forename: Mihai
authors.initials: M
authors.lastname: Popa