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Multi-operator brackets acting thrice

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Thomas Curtright, Xiang Jin and Luca Mezincescu

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FAST TRACK COMMUNICATION

We generalize an identity first found by Bremner for Nambu 3-brackets. For odd N-brackets built from associative operator products, we show that

\fl [ [ A[ B_{1}\cdots B_{N}] B_{N+1}\cdots B_{2N-2}] B_{2N-1}\cdots B_{3N-3}]\\
\lo =[ [ AB_{1}\cdots B_{N-1}] [ B_{N}\cdots B_{2N-1}] B_{2N}\cdots B_{3N-3}]

for any fixed A, when totally antisymmetrized over all the Bs.


PACS

02.30.Tb Operator theory

02.10.Ud Linear algebra

MSC

47B36 Jacobi (tridiagonal) operators (matrices) and generalizations

17B63 Poisson algebras

Subjects

Mathematical physics

Dates

Issue 46 (20 November 2009)

Received 9 September 2009, in final form 24 September 2009

Published 22 October 2009



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