Results 51 to 60 of about 103 (82)

On N(k)-Contact Metric Manifolds

Cubo, 2010
The object of the present paper is to study a type of contact metric manifolds, called contact metric manifolds admitting a non-null concircular and torse forming vector field.
A.A Shaikh, C.S Bagewadi
doaj  

Discrete cyclic systems and circle congruences. [PDF]

Ann Mat Pura Appl, 2022
Hertrich-Jeromin U, Szewieczek G.
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Conformal Mappings of Mixed Generalized Quasi-Einstein Manifolds Admitting Special Vector Fields

Extracta Mathematicae, 2017
It is known that Einstein manifolds form a natural subclass of the class of quasi-Einstein manifolds and plays an important role in geometry as well as in general theory of relativity.
S. Dey, A. Bhattacharyya
doaj  

On riemannian manifolds with constant scalar curvature admitting a conformal transformation group. [PDF]

Proc Natl Acad Sci U S A, 1966
Yano K.
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The Concircular Vector Fields

International Journal of Mathematics and Computer Applications Research, 2019
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Special concircular vector fields in Riemannian manifolds

Hiroshima Mathematical Journal, 1982
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ON SOME RIEMANNIAN MANIFOLDS ADMITTING A CONORCULAR VECTOR FIELD

Demonstratio Mathematica, 1976
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D-CONFORMAL CHANGES IN RIEMANNIAN MANIFOLDS ADMITTING A CONCIRCULAR VECTOR FIELD

D-CONFORMAL CHANGES IN RIEMANNIAN MANIFOLDS ADMITTING A CONCIRCULAR VECTOR FIELD
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An Example of a Concircular Vector Field on a Locally Conformally Kähler Manifold

Mathematical Notes, 2022
The authors prove that the Lie vector of a locally conformally Kähler (LCK) manifold of constant curvature is a concircular vector field. They also consider locally conformally nearly Kähler manifolds and their subclass of LCK manifolds of constant curvature. They obtain conditions under which an LCK manifold of constant curvature is recurrent.
V F Kirichenko, Kirichenko V F
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Co-isotropic submanifolds of a para-Cok�hlerian manifold with concircular structure vector field

Journal of Geometry, 1985
The authors study the concept of CR-submanifold in a para-cokählerian manifold [see the authors, C. R. Acad. Sci., Paris, Sér. A 285, 723-726 (1977; Zbl 0371.53046)]. Here they prove that any co-isotropic submanifold of a para-cokählerian manifold has two CR-structures and then they obtain results on the geometry of the distributions involved in the ...
Rosca Radu
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