Journal of the Tensor Society https://tensorsociety.com/journal/index.php/JTS <p>The Journal of the Tensor Society (JTS) is the official organ of The Tensor Society and publishes original research articles in differential geometry, relativity, cosmology, and all interdisciplinary areas in mathematics that utilize differential geometric methods and structures. The following main areas are covered: differentiable manifolds, Finsler geometry, Lie groups, local and global differential geometry, General Relativity, and geometric theories of gravitation; cosmology, dark energy, dark matter, the accelerating universe, geometric models for particle physics; supergravity and supersymmetric field theories; classical and quantum field theory; gauge theories; topological field theories; and the geometry of chaos. In addition to original research, the Journal of the Tensor Society also publishes focused review articles that assess the state of the art, identify upcoming challenges, and propose promising solutions for the community.</p> en-US editor@tensorsociety.org (Prof. Sudhir Kumar Srivastava) Sat, 04 May 2024 12:11:10 +0000 OJS 3.1.1.4 http://blogs.law.harvard.edu/tech/rss 60 EXPLICIT CHARACTERIZATION OF THE RADIUS OF CURVES LYING IN A SURFACE OF E3 OR E31 https://tensorsociety.com/journal/index.php/JTS/article/view/204 <p>The differential equation characterizing a spherical curve in R3 expresses the radius of curvature of the curve in terms of its torsion. In this paper we show that the differential equation characterizing a curve lying in an oriented surface E3 or E31 allows two express the radius of the curvature of the curve in terms of its torsions. We give two examples for illustrate our main result.</p> Athoumane Niang, Ameth Ndiaye ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-nd/4.0 https://tensorsociety.com/journal/index.php/JTS/article/view/204 Sat, 04 May 2024 00:00:00 +0000 Riemannian Maps From Kaehler Manifold With Generic Fibers https://tensorsociety.com/journal/index.php/JTS/article/view/196 <p>We study Riemannian maps from almost Hermitian manifolds to Riemannian manifolds for the case when the fibers are generic submanifold of the total space. We obtain the integrability conditions for the distributions while vertical distribution is always integrable. We also study the geometry of the leaves of the distribution which arise from such maps, and obtain the necessary and sufficient conditions for the fibers as well as the total manifold to be generic product manifolds. We, further, obtain the necessary and sufficient condition for such maps to be totally geodesic.</p> Shahid Ali, Richa Agarwal ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-nd/4.0 https://tensorsociety.com/journal/index.php/JTS/article/view/196 Sat, 04 May 2024 00:00:00 +0000 Riemannian manifold admitting a new type of semi-symmetric non-metric connection https://tensorsociety.com/journal/index.php/JTS/article/view/205 <p>We define a new type of semi-symmetric non-metric connection on a Riemannian manifold and established its existence. Further, we find some basic results of curvature tensor and Ricci tensor. It is proved that such connection on a Riemannian manifold is projectively invariant under certain conditions. We also studied some properties of submanifolds of the Riemannian manifolds with respect to the semi-symmetric non-metric connection. To validate our findings, we construct two non-trivial examples of 3-dimensional and 5-dimensional Riemannian manifold equipped with a semi-symmetric non-metric connection.</p> Anubhavi Gupta, Bhagwat Prasad, Rana Pratap Singh Yadav ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-nd/4.0 https://tensorsociety.com/journal/index.php/JTS/article/view/205 Tue, 21 May 2024 00:00:00 +0000 On the Lanczos Potential https://tensorsociety.com/journal/index.php/JTS/article/view/201 <p>For arbitrary geometries of Petrov types III, N and O we construct the Lanczos potential for the corresponding Weyl tensor. This will provide a technique to construct Lanczos potential in non-vacuum cases.</p> Ravi Panchal, A.H. Hasmani, J. L opez-Bonilla ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-nd/4.0 https://tensorsociety.com/journal/index.php/JTS/article/view/201 Sat, 04 May 2024 00:00:00 +0000 Does Vacuum Energy Allow for Computational “Bits” at the Start of Cosmological Evolution, and Their Possible Ties to Torsion Physics https://tensorsociety.com/journal/index.php/JTS/article/view/197 <p>Based on the notion that torsion cancels cosmological vacuum energy [1], we<br>consider if relic black holes at the start of inflation may allow for the observed<br>cosmological constant. If thermal energy used at the start of inflation creates<br>conceptual issues, an energy term based on Corda’s treatment of black holes<br>may provide a solution, a leftover cosmological constant 10−121 times vacuum<br>energy. Considerations as to how black-hole physics may contribute to torsion<br>and the cosmological constant are considered in several numerical cases. Also<br>we present entanglement entropy in the early universe with a shrinking scale<br>factor [2] and show that consequences arise due to initial entangled for a timedependent<br>horizon radius in cosmology with flat space conditions for conformal<br>time. This construction preserves a minimum nonzero vacuum energy, and, in<br>doing so, keeps the computational bits for cosmological evolution. The bits are<br>ascribed to initial torsion as we describe.</p> Andrew W Beckwith ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-nd/4.0 https://tensorsociety.com/journal/index.php/JTS/article/view/197 Sat, 04 May 2024 00:00:00 +0000 Common fixed point theorems for C-class functions in b-metric spaces with application https://tensorsociety.com/journal/index.php/JTS/article/view/199 <p>In this paper, we establish the existence and uniqueness of common fixed point theorems for self mappings satisfying the common limit range property with respect to mappings S and T and common (E.A)-property via the concept of C-class functions in b-metric spaces. We furnish two examples to validate our results. Our results improve various results appeared in the current literature. As an application, We provide the existence of a solution of an integral equations.</p> Shashi Thakur, Rakesh Tiwari, Nidhi . ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-nd/4.0 https://tensorsociety.com/journal/index.php/JTS/article/view/199 Thu, 04 May 2023 00:00:00 +0000 TILTED LRS BIANCHI TYPE-VIo DARK ENERGY COSMOLOGICAL MODEL https://tensorsociety.com/journal/index.php/JTS/article/view/198 <p>Tilted LRS Bianchi-VIo dark energy cosmological model is investigated in Einstein’s theory of gravitation. We obtained solutions by considering shear scalar&nbsp; proportional to expansion scalar and deceleration&nbsp; parameter. Further we obtained an accelerating universe subject to the small value of the anisotropic parameter. Some physical and geometrical properties of the solutions are also discussed.</p> Neha ., Mihiret Tulamo Tupala, Sultan Ahmad, Subrata Kumar Sahu ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-nd/4.0 https://tensorsociety.com/journal/index.php/JTS/article/view/198 Sat, 04 May 2024 00:00:00 +0000