nijenhuis tensor
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2021 ◽  
Vol 10 (4) ◽  
pp. 2213-2221
Author(s):  
K. Srivastava ◽  
M. M. Kankarej ◽  
S. K. Srivastava

In present paper we study the properties of Kahler manifold satisfying the semi - symmetric metric connection. Symmetric and skew-symmetric conditions for Nijenhuis tensor of the connection in Kahler manifold has been discussed. The paper also includes some properties of contravariant almost analytic vector field in a Kahler manifold.


2020 ◽  
Vol 35 (1) ◽  
pp. 167
Author(s):  
Mohammad Nazrul Islam Khan

In this paper, we have studied the tangent bundle endowed with quarter-symmetric non-metric connection obtained by vertical and complete lifts of a quarter-symmetric non-metric connection on the base manifold and, also, proposed the study of the tangent bundle of an almost Hermitian manifold and an almost Kaehler manifold. Finally, we obtained some theorems for Nijenhuis tensor on the tangent bundle of an almost Hermitian manifold and an almost Kaehler manifold.\\


2017 ◽  
Vol 14 (03) ◽  
pp. 1750033
Author(s):  
Cristina Bozzetti ◽  
Costantino Medori

We show that almost complex manifolds [Formula: see text] of real dimension 4 for which the image of the Nijenhuis tensor forms a non-integrable bundle, called torsion bundle, admit a [Formula: see text]-structure locally, that is, a double absolute parallelism. In this way, the problem of equivalence for such almost complex manifolds can be solved; moreover, the classification of locally homogeneous manifold [Formula: see text] is explicitly given when the Lie algebra of its infinitesimal automorphisms is non-solvable (indeed reductive). It is also shown that the group of the automorphisms of [Formula: see text] is a Lie group of dimension less than or equal to 4, whose isotropy subgroup has at most two elements, and that there are not non-constant holomorphic functions on [Formula: see text].


Author(s):  
Hideaki Aoyama ◽  
Anatoli Konechny ◽  
V. Lemes ◽  
N. Maggiore ◽  
M. Sarandy ◽  
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2000 ◽  
Vol 43 (2) ◽  
pp. 243-260 ◽  
Author(s):  
Noriaki Kamiya ◽  
Susumu Okubo

AbstractWe will present an investigation of (ε, δ)-Freudenthal–Kantor supertriple systems that are intimately related to Lie supertriple systems and Lie superalgebras. We can also introduce a super analogue of Nijenhuis tensor and almost-complex structure in differential geometry.


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