## On totally umbilical cosymplectic hypersurfaces of six-dimensional Hermitian submanifolds of Cayley algebra.(English)Zbl 1066.53058

The author proves that cosymplectic hypersurfaces of six-dimensional Hermitian submanifolds of the Cayley algebra are totally umbilical if and only if they are totally geodesic.

### MSC:

 53C10 $$G$$-structures 58C05 Real-valued functions on manifolds
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### References:

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