A New Class of Contact Pseudo Framed Manifolds with Applications
In this paper, we introduce a new class of contact pseudo framed (CPF)-manifolds M,g,f,λ,ξ by a real tensor field f of type 1,1, a real function λ such that f3=λ2f where ξ is its characteristic vector field. We prove in our main Theorem 2 that M admits a closed 2-form Ω if λ is constant. In 1976, Bl...
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2021-01-01
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Series: | International Journal of Mathematics and Mathematical Sciences |
Online Access: | http://dx.doi.org/10.1155/2021/6141587 |
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author | K. L. Duggal |
author_facet | K. L. Duggal |
author_sort | K. L. Duggal |
collection | DOAJ |
description | In this paper, we introduce a new class of contact pseudo framed (CPF)-manifolds M,g,f,λ,ξ by a real tensor field f of type 1,1, a real function λ such that f3=λ2f where ξ is its characteristic vector field. We prove in our main Theorem 2 that M admits a closed 2-form Ω if λ is constant. In 1976, Blair proved that the vector field ξ of a normal contact manifold is Killing. Contrary to this, we have shown in Theorem 2 that, in general, ξ of a normal CPF-manifold is non-Killing. We also have established a link of CPF-hypersurfaces with curvature, affine, conformal collineations symmetries, and almost Ricci soliton manifolds, supported by three applications. Contrary to the odd-dimensional contact manifolds, we construct several examples of even- and odd-dimensional semi-Riemannian and lightlike CPF-manifolds and propose two problems for further consideration. |
format | Article |
id | doaj-art-421be26476f4454ba520e8daa9caa89d |
institution | Kabale University |
issn | 0161-1712 1687-0425 |
language | English |
publishDate | 2021-01-01 |
publisher | Wiley |
record_format | Article |
series | International Journal of Mathematics and Mathematical Sciences |
spelling | doaj-art-421be26476f4454ba520e8daa9caa89d2025-02-03T01:25:14ZengWileyInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04252021-01-01202110.1155/2021/61415876141587A New Class of Contact Pseudo Framed Manifolds with ApplicationsK. L. Duggal0Department of Mathematics and Statistics, University of Windsor, Windsor, Ontario N9B3P4, CanadaIn this paper, we introduce a new class of contact pseudo framed (CPF)-manifolds M,g,f,λ,ξ by a real tensor field f of type 1,1, a real function λ such that f3=λ2f where ξ is its characteristic vector field. We prove in our main Theorem 2 that M admits a closed 2-form Ω if λ is constant. In 1976, Blair proved that the vector field ξ of a normal contact manifold is Killing. Contrary to this, we have shown in Theorem 2 that, in general, ξ of a normal CPF-manifold is non-Killing. We also have established a link of CPF-hypersurfaces with curvature, affine, conformal collineations symmetries, and almost Ricci soliton manifolds, supported by three applications. Contrary to the odd-dimensional contact manifolds, we construct several examples of even- and odd-dimensional semi-Riemannian and lightlike CPF-manifolds and propose two problems for further consideration.http://dx.doi.org/10.1155/2021/6141587 |
spellingShingle | K. L. Duggal A New Class of Contact Pseudo Framed Manifolds with Applications International Journal of Mathematics and Mathematical Sciences |
title | A New Class of Contact Pseudo Framed Manifolds with Applications |
title_full | A New Class of Contact Pseudo Framed Manifolds with Applications |
title_fullStr | A New Class of Contact Pseudo Framed Manifolds with Applications |
title_full_unstemmed | A New Class of Contact Pseudo Framed Manifolds with Applications |
title_short | A New Class of Contact Pseudo Framed Manifolds with Applications |
title_sort | new class of contact pseudo framed manifolds with applications |
url | http://dx.doi.org/10.1155/2021/6141587 |
work_keys_str_mv | AT klduggal anewclassofcontactpseudoframedmanifoldswithapplications AT klduggal newclassofcontactpseudoframedmanifoldswithapplications |