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Compact gradient $$\rho$$ ρ -Einstein soliton is isometric to the Euclidean sphere
Indian Journal of Pure and Applied Mathematics ( IF 0.4 ) Pub Date : 2021-07-05 , DOI: 10.1007/s13226-021-00034-7
Absos Ali Shaikh 1 , Chandan Kumar Mondal 1, 2 , Prosenjit Mandal 1
Affiliation  

In this paper, we have investigated some aspects of gradient \(\rho\)-Einstein Ricci soliton in a complete Riemannian manifold. First, we have proved that the compact gradient \(\rho\)-Einstein soliton satisfying some curvature conditions is isometric to the Euclidean sphere by showing that the scalar curvature becomes constant. Second, we have shown that in a non-compact gradient \(\rho\)-Einstein soliton satisfying an integral condition, the scalar curvature vanishes.



中文翻译:

紧凑梯度 $$\rho$$ ρ -Einstein 孤子与欧几里德球面等距

在本文中,我们研究了完全黎曼流形中梯度\(\rho\) -Einstein Ricci 孤子的某些方面。首先,我们通过证明标量曲率变为常数,证明了满足某些曲率条件的紧梯度\(\rho\) -爱因斯坦孤子与欧几里德球面等距。其次,我们已经证明,在满足积分条件的非紧梯度\(\rho\) -爱因斯坦孤子中,标量曲率消失。

更新日期:2021-07-05
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