For any connected Lie group G, we introduce the notion of exponential radical Exp G that is the set of all strictly exponentially distorted elements of G. In case G is a connected simply-connected solvable Lie group, we prove that Exp G is a connected normal Lie subgroup in G and the exponential rad
Supplements on the theory of exponential Lie groups
✍ Scribed by Michael Wüstner
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 217 KB
- Volume
- 265
- Category
- Article
- ISSN
- 0021-8693
No coin nor oath required. For personal study only.
✦ Synopsis
A Lie group with surjective exponential function is called exponential. There are presented supplying results on the theory of exponential Lie groups. An additional criterion for (Mal'cev) splittable exponential Lie groups is presented as well as an additional necessary condition for solvable exponential Lie groups. Both the conditions have the advantage that they are well practicable. Moreover, it is shown that there exist simple non-linear exponential Lie groups. The general case is also considered: There are given some conditions concerning the Mal'cev splittable radical. At the end of the paper, one can find some counterexamples to some conjectures concerning exponential Lie groups.
📜 SIMILAR VOLUMES
For a solvable Lie group G the surjectivity of the exponential function expc is equivalent to the connectedness of the near-Cartan subgroups and to the connectedness of the centralizers in a Cartan subgroup of all nilpotent elements in its Lie algebra g. Furthermore, these conditions are satisfied i
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