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math-ph2005★ 2 cited
Feynman graphs for non-Gaussian measures
S. H. Djah, H. Gottschalk, H. Ouerdiane
Partition- and moment functions for a general (not necessarily Gaussian) functional measure that is perturbed by a Gibbs factor are calculated using generalized Feynman graphs. Fro…
math-ph2004
Feynman graph representation of the perturbation series for general functional measures
S. H. Djah, H. Gottschalk, H. Ouerdiane
A representation of the perturbation series of a general functional measure is given in terms of generalized Feynman graphs and -rules. The graphical calculus is applied to certain…