Existence of the Covariant Time-Ordered Product of Currents
- 25 November 1969
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 187 (5) , 2017-2026
- https://doi.org/10.1103/physrev.187.2017
Abstract
The existence of the covariant product of any number of currents is investigated without introducing any extraneous assumptions. We find that it does exist and can be constructed explicitly by an algebraic method.
Keywords
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