Results 141 to 150 of about 11,813 (170)

A Commutator Formula for Subnormal Tuples of Operators

Integral Equations and Operator Theory, 2015
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Anti-commutators and the related trace formulas

Integral Equations and Operator Theory, 1985
The main results of this paper are that if A and B are bounded self- adjoint operators with trace class anti-commutator \(AB+BA\), then \(tr[A^ kB^{\ell},A^ mB^ n]=0\), where k, \(\ell\), m, n are non-negative integers with \(kn+\ell m\) even. The author even proved that if the bounded self-adjoint operator A and B with trace class anti-commutator also
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Commutator formulas in groups of Kac-Moody type

2022
In this thesis, I prove that root groups associated to nested roots in certain rank 3 hyperbolic buildings must commute. Also, I give necessary and sufficient conditions for existence of nontrivial commutators between root groups associated to roots generating infinite root systems in Kac-Moody groups.
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The commutation formulae in conformal Finsler space

Annali di Matematica Pura ed Applicata, 1968
The commutation formulae in Finsler space have been studied by several authors. Various forms of these commutation formulae under the conformal change of a Finsler space have been obtained here.
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On the commutator formula of a split BN-pair

Pacific Journal of Mathematics, 2002
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The Baker–Campbell–Hausdorff formula and nested commutator identities

Journal of Mathematical Physics, 1991
The coefficients of the Baker–Campbell–Hausdorff expansion are calculated by using various methods. Comparison of the results yields several remarkable identities satisfied by multiple commutators, which, in turn, allow us to greatly simplify the form of the expansion up to order eight.
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On Commutation Formulas in the Algebra of Quantum Mechanics

Transactions of the American Mathematical Society, 1929
It is the purpose of this paper to make a study of commutation formulas in the algebra of quantum mechanics. The theories of quantum mechanics introduced by Heisenbergt and Diract are different in their conception and formulation but both make use of a non-commutative algebra.
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Thermographic fault diagnosis of electrical faults of commutator and induction motors

Engineering Applications of Artificial Intelligence, 2023
Adam Glowacz
exaly  

Microcapsule delivery systems of functional ingredients in infant formulae: Research progress, technology, and feasible application of liposomes

Trends in Food Science and Technology, 2022
Aiqian Ye, Xiankang Xu, Jianzhong Han
exaly  

Theory of Trotter Error with Commutator Scaling

Physical Review X, 2021
Andrew M Childs, Yuan Su, Minh Cong Tran
exaly