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arXiv 1801.04767math.DG
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k-almost Ricci孤子与接触几何

The k-almost Ricci solitons and contact geometry

Amalendu Ghosh, Dhriti Sundar Patra

摘要:

本文研究了切触度量流形上的k-几乎Ricci孤子和k-几乎梯度Ricci孤子。首先,证明了如果紧致K-接触度量是k-几乎梯度Ricci孤子,则它等距于单位球面S2 n +1。其次,我们将这一结果推广到流向量场X是切触的紧k-几乎Ricci孤子上。最后,我们研究了一类特殊的k-几乎Ricci孤子,其中势向量场X与接触度规结构的Reeb向量场点共线.

英文摘要:

The aim of this article is to study the k-almost Ricci soliton and k-almost gradient Ricci soliton on contact metric manifold. First, we prove that if a compact K-contact metric is a k-almost gradient Ricci soliton then it is isometric to a unit sphere S2n+1. Next, we extend this result on a compact k-almost Ricci soliton when the flow vector field X is contact. Finally, we study some special types of k-almost Ricci soliton where the potential vector field X is point wise collinear with the Reeb vector field ξ of the contact metric structure.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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