The idea of this research is to study different types of connections in an almost Hermite manifold. The connection has been established between linear connection and Riemannian connection. Three new linear connections...The idea of this research is to study different types of connections in an almost Hermite manifold. The connection has been established between linear connection and Riemannian connection. Three new linear connections <span style="white-space:nowrap;">∇</span><sup>1</sup>, <span style="white-space:nowrap;">∇</span><sup>2</sup>, <span style="white-space:nowrap;">∇</span><sup>3</sup> are introduced. The necessary and sufficient condition for <span style="white-space:nowrap;">∇</span><sup>1</sup>, <span style="white-space:nowrap;">∇</span><sup>2</sup>, <span style="white-space:nowrap;">∇</span><sup>3</sup> to be metric is discussed. A new metric <i>s</i><sup>*</sup> (<i>X</i>,<i>Y</i>) has been defined for (<i>M</i><sup><i>n</i></sup>,<i>F</i>,<i>g</i><sup>*</sup>) and additional properties are discussed. It is also proved that for the quarter symmetric connection <span style="white-space:nowrap;">∇ </span>is unique in given manifold. The hessian operator with respect to all connections defined above has also been discussed.展开更多
In this paper, we study conharmonic curvature tensor in Kenmotsu manifolds with respect to semi-symmetric metric connection and also characterize conharmonically flat, conharmonically semisymmetric and Ф-conharmonica...In this paper, we study conharmonic curvature tensor in Kenmotsu manifolds with respect to semi-symmetric metric connection and also characterize conharmonically flat, conharmonically semisymmetric and Ф-conharmonically flat Kenmotsu manifolds with respect to semi-symmetric metric connection.展开更多
文摘The idea of this research is to study different types of connections in an almost Hermite manifold. The connection has been established between linear connection and Riemannian connection. Three new linear connections <span style="white-space:nowrap;">∇</span><sup>1</sup>, <span style="white-space:nowrap;">∇</span><sup>2</sup>, <span style="white-space:nowrap;">∇</span><sup>3</sup> are introduced. The necessary and sufficient condition for <span style="white-space:nowrap;">∇</span><sup>1</sup>, <span style="white-space:nowrap;">∇</span><sup>2</sup>, <span style="white-space:nowrap;">∇</span><sup>3</sup> to be metric is discussed. A new metric <i>s</i><sup>*</sup> (<i>X</i>,<i>Y</i>) has been defined for (<i>M</i><sup><i>n</i></sup>,<i>F</i>,<i>g</i><sup>*</sup>) and additional properties are discussed. It is also proved that for the quarter symmetric connection <span style="white-space:nowrap;">∇ </span>is unique in given manifold. The hessian operator with respect to all connections defined above has also been discussed.
基金supported by University Grants Commission, New Delhi, India of Major Research Project(Grant No. 39-30/2010(SR))UGC, New Delhi for financial support in the form of UGC MRP
文摘In this paper, we study conharmonic curvature tensor in Kenmotsu manifolds with respect to semi-symmetric metric connection and also characterize conharmonically flat, conharmonically semisymmetric and Ф-conharmonically flat Kenmotsu manifolds with respect to semi-symmetric metric connection.