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Extremal Projector and Dynamical Twist

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Abstract

We describe a relation between the dynamical twist J(λ) and the extremal projector for simple Lie algebras. This correspondence finds two obvious applications: first, the solution of the Arnaudon–Buffenoir–Ragoucy–Roche equation can be obtained from the known multiplicative expression for the extremal projector; second, the structure constants are determined by the matrix coefficients of the dynamical twist.

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  1. Institute of Theoretical and Experimental Physics, Moscow, Russia

    S. M. Khoroshkin

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  1. S. M. Khoroshkin
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Khoroshkin, S.M. Extremal Projector and Dynamical Twist. Theoretical and Mathematical Physics 139, 582–597 (2004). https://doi.org/10.1023/B:TAMP.0000022749.42512.fd

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