Yazar "Yadav, Sunil Kumar" seçeneğine göre listele

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    CONFORMAL η-RICCI-YAMABE SOLITONS ON SUBMANIFOLDS OF AN (LCS )n-MANIFOLD ADMITTING A QUARTER-SYMMETRIC METRIC CONNECTION
    (Ankara Univ, Fac Sci, 2024) Yadav, Sunil Kumar; Haseeb, Abdul; Yildiz, Ahmet
    This paper presents some results for conformal eta- Ricci-Yamabe solitons (CERYS) on invariant and anti-invariant submanifolds of a (GCS)n- GCS )( n)- manifold admitting a quarter-symmetric metric connection (QSMC). In addition, we developed the characterization of CERYS on M- projectively flat, Q- flat, and concircularly flat anti-invariant submanifolds of a (GCS)n-manifold GCS )( n)-manifold with respect to the aforementioned connection. Finally, we construct an extensive example that appoints some of our inferences.
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    New Results on the Perfect Fluid Lorentzian Para-Sasakian Spacetimes
    (Prof. Dr. Mehmet Zeki SARIKAYA, 2025) Yadav, Sunil Kumar; Yıldız, Ahmet
    In this article, we investigate L P-Sasakian spacetimes attached with perfect fluid whose metrics are (CERY)4-soliton admitting Z-tensor. Also we discuss the application of such soliton to cosmology and general relativity. Besides this, we deduce a modified Poisson equation and modified Liouville equation from the (CERY)4-soliton on L P-Sasakian spacetimes. In addition, we light up the harmonic aspect of such soliton on perfect fluid L P-Sasakian spacetimes. Moreover, we conclude a necessary and sufficient condition for a 1-form η♯, which is the g⋆-dual of the vector field ξ on such a spacetime to be a solution of the Schrödinger-Ricci equation. In conclusion, we present an instance of a 4-dimensional L P-Sasakian spacetime with the (CERY)4-soliton equipped with Z-tensor. © 2025, Prof. Dr. Mehmet Zeki SARIKAYA. All rights reserved.