Non-singular weakly symmetric nilmanifolds
Journal of Lie Theory, Special issue dedicated to the memory of Joseph A. Wolf, Volume 36 (2026) no. 1, pp. 201-211

A Riemannian manifold is called weakly symmetric if any two points in $M$ can be interchanged by an isometry. We give a complete classification of simply connected non-singular weakly symmetric nilmanifolds. Besides previously known examples, there are new families with 3-dimensional center, and a one-parameter family of dimensions 14.

Received:
Accepted:
Published online:
DOI: 10.5802/jolt.1424
Classification: 53C30, 53C25, 22E25, 17B30
Keywords: non-singular nilmanifold, weakly symmetric manifold

Nikolayevsky, Yuri  1 ; Ziller, Wolfgang  2

1 Department of Mathematical and Physical Sciences, La Trobe University, Melbourne, Australia 3086
2 Department of Mathematics, University of Pennsylvania, Philadelphia, PA 19104, USA
Nikolayevsky, Yuri; Ziller, Wolfgang. Non-singular weakly symmetric nilmanifolds. Journal of Lie Theory, Special issue dedicated to the memory of Joseph A. Wolf, Volume 36 (2026) no. 1, pp. 201-211. doi: 10.5802/jolt.1424
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