From reflection equation algebra to braided yangians

Gurevich, Dimitri; Saponov, Pavel

doi:10.1007/978-3-030-04807-5

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From reflection equation algebra to braided yangians

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Gurevich, Dimitri
Max Planck Institute for Mathematics, Max Planck Society;

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https://doi.org/10.1007/978-3-030-04807-5
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arXiv:1806.10219.pdf
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Gurevich, D., & Saponov, P. (2018). From reflection equation algebra to braided yangians. In Recent developments in integrable systems and related topics of mathematical physics (pp. 107-129). Cham: Springer.

Cite as: https://hdl.handle.net/21.11116/0000-0003-D045-4

Abstract

In general, quantum matrix algebras are associated with a couple of compatible braidings. A particular example of such an algebra is the so-called Reflection Equation algebra In this paper we analyze its
specific properties, which distinguish it from other quantum matrix algebras (in first turn, from the RTT one). Thus, we exhibit a specific form of the Cayley-Hamilton identity for its generating matrix, which in a limit
turns into the Cayley-Hamilton identity for the generating matrix of the enveloping algebra U(gl(m)). Also, we consider some specific properties of the braided Yangians, recently introduced by the authors. In particular, we exhibit an analog of the Cayley-Hamilton identityfor the generating matrix of such a braided Yangian. Besides, by passing to a limit of this braided Yangian, we get a Lie algebra similar to that entering the construction of the rational Gaudin model. In its enveloping algebra we
construct a Bethe subalgebra by the method due to D.Talalaev.