Abstract
As it was noted earlier, evaluation of integrals w.r.t. Gaussian measure and quasimeasure of functional polynomials is reduced to evaluation of moments which, in turn, may be found using the diagram approach due to Feynman. The usage of diagrams enables to discriminate and classify separate summands which contribute to the value of a moment, and this may be used in constructing approximate formulae.
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© 1993 Springer Science+Business Media Dordrecht
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Egorov, A.D., Sobolevsky, P.I., Yanovich, L.A. (1993). Approximations which Agree with Diagram Approaches. In: Functional Integrals: Approximate Evaluation and Applications. Mathematics and Its Applications, vol 249. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1761-6_9
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DOI: https://doi.org/10.1007/978-94-011-1761-6_9
Publisher Name: Springer, Dordrecht
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