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Path integrals, Fourier transforms and Feynman's operational calculus
Abstract
The disentangling process is the key to Feynman's operational calculus for noncommuting operators. The main result of his heuristic calculations deals with disentangling an exponential factor. We use the Wiener and Feynman integrals to make this disentangling (or time-ordering) mathematically rigorous in the case where the analytic functions from earlier work are replaced by Fourier transforms of complex measures.
Subject Area
Mathematics
Recommended Citation
Ahn, Byung Moo, "Path integrals, Fourier transforms and Feynman's operational calculus" (1992). ETD collection for University of Nebraska-Lincoln. AAI9233389.
https://digitalcommons.unl.edu/dissertations/AAI9233389