Abstract
We obtain the complete classification and explicitly describe totally geodesic and parallel hypersurfaces of four-dimensional oscillator groups, equipped with a one-parameter family of left-invariant Lorentzian metrics.
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The first author is partially supported by funds of the University of Salento and MURST (PRIN).
The second author is a post-doctoral researcher supported by the Research Foundation–Flanders (F.W.O.).
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Calvaruso, G., Van der Veken, J. Totally Geodesic and Parallel Hypersurfaces of Four-Dimensional Oscillator Groups. Results. Math. 64, 135–153 (2013). https://doi.org/10.1007/s00025-012-0304-4
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DOI: https://doi.org/10.1007/s00025-012-0304-4