Cayley-Klein Lie bialgebras: Noncommutative spaces, Drinfel'd doubles and kinematical applications
Ivan Gutierrez-Sagredo,
Francisco J. Herranz
Abstract:The Cayley-Klein (CK) formalism is applied to the real algebra so(5) by making use of four graded contraction parameters describing in a unified setting 81 Lie algebras, which cover the (anti-)de Sitter, Poincaré, Newtonian and Carrollian algebras. Starting with the Drinfel'd-Jimbo real Lie bialgebra for so(5) together with its Drinfel'd double structure, we obtain the corresponding CK bialgebra and the CK r-matrix coming from a Drinfel'd double. As a novelty, we construct the (first-order) noncommutative CK s… Show more
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