Results 41 to 50 of about 196 (113)

On a Classification of Almost C(α)‐Manifolds

Journal of Mathematics, Volume 2022, Issue 1, 2022., 2022
In this paper, pseudosymmetric and Ricci pseudosymmetric almost C(α)‐manifold are studied. For an almost C(α)‐manifold, Riemann pseudosymmetric, Riemann Ricci pseudosymmetric, Ricci pseudosymmetric, projective pseudosymmetric, projective Ricci pseudosymmetric, concircular pseudosymmetric, and concircular Ricci pseudosymmetric cases are considered and ...
Tuğba Mert, Serkan Araci
wiley   +1 more source

ρ-Einstein solitons in Lorentzian para-Kenmotsu manifolds

Results in Nonlinear Analysis

openalex   +3 more sources

LP‐Kenmotsu Manifolds Admitting η‐Ricci Solitons and Spacetime

Journal of Mathematics, Volume 2022, Issue 1, 2022., 2022
In the present paper, LP‐Kenmotsu manifolds admitting η‐Ricci solitons have been studied. Moreover, some results for η‐Ricci solitons in LP‐Kenmotsu manifolds in the spacetime of general relativity have also been proved. Through a nontrivial example, we have given a proof for the existence of η‐Ricci solitons in a 5‐dimensional LP‐Kenmotsu manifold.
Yanlin Li, Abdul Haseeb, Musavvir Ali, G. Muhiuddin   +3 more
wiley   +1 more source

∗‐Ricci Tensor on α‐Cosymplectic Manifolds

Advances in Mathematical Physics, Volume 2022, Issue 1, 2022., 2022
In this paper, we study α‐cosymplectic manifold M admitting ∗‐Ricci tensor. First, it is shown that a ∗‐Ricci semisymmetric manifold M is ∗‐Ricci flat and a ϕ‐conformally flat manifold M is an η‐Einstein manifold. Furthermore, the ∗‐Weyl curvature tensor W∗ on M has been considered.
M. R. Amruthalakshmi, D. G. Prakasha, Nasser Bin Turki, Inan Unal, Meraj Ali Khan   +4 more
wiley   +1 more source

On Compact Trans‐Sasakian Manifolds

Advances in Mathematical Physics, Volume 2022, Issue 1, 2022., 2022
We study 3‐dimensional compact and simply connected trans‐Sasakian manifolds and find necessary and sufficient conditions under which these manifolds are homothetic to Sasakian manifolds. The first two results deal with finding necessary and sufficient conditions on a compact and simply connected trans‐Sasakian manifold to be homothetic to an Einstein ...
Ibrahim Al-Dayel, Sharief Deshmukh, P. Areias   +2 more
wiley   +1 more source

Some solitons on anti-invariant submanifold of LP-Kenmotsu manifold admitting Zamkovoy connection [PDF]

Journal of Hyperstructures
In this paper we prove some curvature properties of anti-invariant submanifold of Lorentzian para-Kenmotsu manifold (briefly, LP-Kenmotsu manifolds) with respect to Zamkovoy connection (∇∗).
Abhijit Mandal, Meghlal Mallik
doaj   +1 more source

Totally umbilical proper slant submanifolds of para-Kenmotsu manifold

Cubo, 2019
In this paper, we study slant submanifolds of a para-Kenmotsu manifold. We prove that totally umbilical slant submanifold of a para-Kenmotsu manifold is either invariant or anti-invariant or dimension of submanifold is 1 or the mean curvature vector H of
M.S. Siddesha, C.S. Bagewadi, D. Nirmala
doaj   +1 more source

Optimization of Soliton Structures Using Lifting Theory on Tangent Bundles of Statistical Kenmotsu Manifolds

Journal of Mathematics, Volume 2026, Issue 1, 2026.
This paper investigates the optimization of soliton structures on tangent bundles of statistical Kenmotsu manifolds through lifting theory. By constructing lifted statistical Kenmotsu structures using semisymmetric metric and nonmetric connections, we derive explicit expressions for the curvature tensor, Ricci operator, and scalar curvature. We analyze
Mohammad Nazrul Islam Khan, Lalnunenga Colney, Teg Alam, Pramita Mishra   +3 more
wiley   +1 more source

LP-Kenmotsu Manifolds Admitting Bach Almost Solitons

Universal Journal of Mathematics and Applications
For a Lorentzian para-Kenmotsu manifold of dimension $m$ (briefly, ${(LPK)_{m}}$) admitting Bach almost soliton $(g,\zeta,\lambda)$, we explored the characteristics of the norm of Ricci operator. Besides, we gave the necessary condition for ${(LPK)_{m}}
Mohd Bilal, Vindhyachal Singh Yadav, Abhinav Verma, Rajendra Prasad, Abdul Haseeb   +4 more
doaj   +1 more source

Desensitizing Effect of Intra‐Tumoral GDF‐15 on Immunotherapy in Patients With Advanced Non‐Small Cell Lung Cancer

Thoracic Cancer, Volume 16, Issue 10, May 2025.
Intra‐tumoral GDF‐15 expression was assessed in advanced NSCLC patients receiving PD‐1/PD‐L1 monotherapy. GDF‐15 high levels were strongly associated with cancer cachexia and significantly poorer clinical outcomes, suggesting its potential as a predictive biomarker for immunotherapy efficacy.
Naoya Nishioka, Tateaki Naito, Takashi Sugino, Koji Muramatsu, Shigeki Nishihara, Hiroki Urashima, Nobuaki Mamesaya, Haruki Kobayashi, Shota Omori, Ryo Ko, Kazushige Wakuda, Akira Ono, Hirotsugu Kenmotsu, Haruyasu Murakami, Toshiaki Takahashi   +14 more
wiley   +1 more source