English

Generalized Kenmotsu Manifolds

Differential Geometry 2020-07-03 v1

Abstract

In 1972, K. Kenmotsu studied a class of almost contact Riemannian manifolds. Later, such a manifold was called a Kenmotsu manifold. This paper, we studied Kenmotsu manifolds with (2n+s)(2n+s)-dimensional ss-contact metric manifold and this manifold, we have called generalized Kenmotsu manifolds. Necessary and sufficient condition is given for an almost ss-contact metric manifold to be a generalized Kenmotsu manifold.We show that a generalized Kenmotsu manifold is a locally warped product space. In addition, we study some curvature properties of generalized Kenmotsu manifolds. Moreover, we show that the φ\varphi % -sectional curvature of any semi-symmetric and projective semi-symmetric % (2n+s)-dimensional generalized Kenmotsu manifold is s-s.

Keywords

Cite

@article{arxiv.1406.1032,
  title  = {Generalized Kenmotsu Manifolds},
  author = {Aysel Turgut Vanli and Ramazan Sari},
  journal= {arXiv preprint arXiv:1406.1032},
  year   = {2020}
}
R2 v1 2026-06-22T04:30:27.196Z