Twisting and kappa-Poincare
classification
🧮 math-ph
hep-thmath.MP
keywords
algebrakappa-poincarenonexistencetwistarguebasisclassicalcochain
read the original abstract
We demonstrate that the coproduct of D=2 and D=4 quantum kappa-Poincare algebra in classical algebra basis can not be obtained by the cochain twist depending only on Poincare algebra generators. We also argue that nonexistence of such a twist does not imply the nonexistence of universal R-matrix.
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