Physics – Mathematical Physics
Scientific paper
2008-03-18
Journal of Geometry and Physics 58 (2008) 208-217
Physics
Mathematical Physics
12 pages
Scientific paper
10.1016/j.geomphys.2007.10.005
We consider finite-dimensional complex Lie algebras. We generalize the concept of Lie derivations via certain complex parameters and obtain various Lie and Jordan operator algebras as well as two one-parametric sets of linear operators. Using these parametric sets, we introduce complex functions with fundamental property - invariance under Lie isomorphisms. One of these basis-independent functions represents a complete set of invariant(s) for three-dimensional Lie algebras. We present also its application on physically motivated examples in dimension eight.
Hrivnák Jiří
Novotný Petr
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