79 citations · 156 across the 7 of their papers we have counts for
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Twistor and Reflector Spaces of Almost Para-Quaternionic Manifolds
Stefan Ivanov, Ivan Minchev, Simeon Zamkovoy
We investigate the integrability of natural almost complex structures on the twistor space of an almost para-quaternionic manifold as well as the integrability of natural almost pa…
Twistors of Almost Quaternionic Manifolds
Stefan Ivanov, Ivan Minchev, Simeon Zamkovoy
We investigate the integrability of almost complex structures on the twistor space of an almost quaternionic manifold constructed with the help of a quaternionic connection. We sho…
SU(3)-structures on submanifolds of a Spin(7)-manifold
Stefan Ivanov, Francisco Martín Cabrera
Local SU(3)-structures on an oriented submanifold of Spin(7)-manifold are determined and their types are characterized in terms of the shape operator and the type of the Spin(7)-st…
Locally conformal parallel and manifolds
Stefan Ivanov, Maurizio Parton, Paolo Piccinni
We characterize compact locally conformal parallel (respectively, ) manifolds as fiber bundles over with compact nearly Kähler (respectively, compact nearly pa…