Solutions to open problems in Neeb's recent survey on infinite-dimensional Lie groups
| dc.creator | Glockner, Helge | |
| dc.date | 2008-01-12 | |
| dc.date.accessioned | 2026-07-07T08:54:13Z | |
| dc.date.available | 2026-07-07T08:54:13Z | |
| dc.description | We solve three open problems concerning infinite-dimensional Lie groups posed in a recent survey article by K.-H. Neeb: (1) There exists a subgroup of some infinite-dimensional Lie group G which does not admit an initial Lie subgroup structure; (2) The pathology cannot occur if G is a direct limit of an ascending sequence of finite-dimensional Lie groups; (3) Every such direct limit group is a ``topological group with Lie algebra'' in the sense of Hofmann and Morris. Moreover, we prove a version of Borel's Theorem announced in the survey, ensuring the existence of compactly supported smooth diffeomorphisms with given Taylor series around a fixed point p (provided the tangent map at p has positive determinant). | |
| dc.description | 23 pages | |
| dc.identifier | https://arxiv.org/abs/0801.1919 | |
| dc.identifier | http://arxiv.org/abs/0801.1919 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/145850 | |
| dc.subject | Group Theory | |
| dc.subject | Differential Geometry | |
| dc.subject | 22E65 (Primary); 58B10 (Secondary) | |
| dc.title | Solutions to open problems in Neeb's recent survey on infinite-dimensional Lie groups | |
| dc.type | text |