Abstract
We classify representations of compact connected Lie groups whose induced action on the unit sphere has the orbit space isometric to a Riemannian orbifold.
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Acknowledgments
The second named author would like to thank Gudlaugur Thorbergsson for very constructive discussions at the time of the work on [25], during which the idea for the present paper was born. The authors also wish to thank Marco Radeschi for useful comments on a preliminary version of this paper. Finally, they would like to thank the anonymous referee for providing them with constructive comments and suggestions.
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C. Gorodski was partially supported by the CNPq Grant 303038/2013-6 and the FAPESP Project 2011/21362-2.
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Gorodski, C., Lytchak, A. Isometric actions on spheres with an orbifold quotient. Math. Ann. 365, 1041–1067 (2016). https://doi.org/10.1007/s00208-015-1304-y
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DOI: https://doi.org/10.1007/s00208-015-1304-y