Furkejuvvon:
| Váldodahkkit: | , |
|---|---|
| Materiálatiipa: | Preprint |
| Almmustuhtton: |
2019
|
| Fáttát: | |
| Liŋkkat: | https://arxiv.org/abs/1908.07809 |
| Fáddágilkorat: |
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Sisdoallologahallan:
- We construct certain Steinberg groups associated to extended affine Lie algebras and their root systems. Then by the integration methods of Kac and Peterson for integrable Lie algebras, we associate a group to every tame extended affine Lie algebra. Afterwards, we show that the extended affine Weyl group of the ground Lie algebra can be recovered as a quotient group of two subgroups of the group associated to the underlying algebra similar to Kac-Moody groups.