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Teoreticheskaya i Matematicheskaya Fizika, 1976, Volume 28, Number 2, Pages 189–200
(Mi tmf4247)
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This article is cited in 14 scientific papers (total in 14 papers)
Infinite products and $T$ products of exponentials
M. V. Karasev, M. V. Mosolova
Abstract:
Simple explicit expressions are obtained for the logarithm of a $T$ product and finite and infinite products of exponentials; these generalize the Kampbell–Hausdorff–Baker–Dynkin formula. The proofs do not use series expansions and are based on the general calculus of functions of noncommuting operators. The analog of the Wick formula in an arbitrary Lie algebra is obtained.
Received: 14.11.1975
Citation:
M. V. Karasev, M. V. Mosolova, “Infinite products and $T$ products of exponentials”, TMF, 28:2 (1976), 189–200; Theoret. and Math. Phys., 28:2 (1976), 721–729
Linking options:
https://www.mathnet.ru/eng/tmf4247 https://www.mathnet.ru/eng/tmf/v28/i2/p189
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