A note on a canonical dynamical r-matrix

Details A note on a canonical dynamical r-matrix A note on a canonical dynamical r-matrix

2001-09-13

arxiv.org/abs/math/0109082v1

J.Phys. A34 (2001) 10949-10962

Mathematics

Quantum Algebra

17 pages, LaTeX2e

Scientific paper

10.1088/0305-4470/34/49/314

It is well known that a classical dynamical $r$-matrix can be associated with every finite-dimensional self-dual Lie algebra $\G$ by the definition $R(\omega):= f(\mathrm{ad} \omega)$, where $\omega\in \G$ and $f$ is the holomorphic function given by $f(z)={1/2}\coth \frac{z}{2}-\frac{1}{z}$ for $z\in \C\setminus 2\pi i \Z^*$. We present a new, direct proof of the statement that this canonical $r$-matrix satisfies the modified classical dynamical Yang-Baxter equation on $\G$.

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