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Relative nullity foliations and lightlike hypersurfaces in indefinite Kenmotsu manifolds

Chia sẻ: Vi Nguyen | Ngày: | Loại File: PDF | Số trang:21

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Relative nullity foliations and lightlike hypersurfaces in indefinite Kenmotsu manifolds

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This paper deals with the relative nullity distributions of lightlike hypersurfaces of indefinite Kenmotsu space forms, tangent to the structure vector field. Theorems on parallel vector fields are obtained. We give characterization theorems for the relative nullity distributions as well as for Einstein, totally contact umbilical and flat lightlike hypersurfaces.

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Nội dung Text: Relative nullity foliations and lightlike hypersurfaces in indefinite Kenmotsu manifolds

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