论文标题

像sasaki一样的垂直电势的Ricci样孤子几乎接触B-金属歧管

Ricci-like solitons with vertical potential on Sasaki-like almost contact B-metric manifolds

论文作者

Manev, Mancho

论文摘要

研究的对象是Sasaki样接触歧管上类似Ricci的孤子。考虑到Ricci样孤子的电势是Reeb载体场或圆线线的情况。在前一种情况下,研究了平行或经常性ricci张量的属性。在后一种情况下,结果表明,所考虑的类似Ricci的孤子的电势具有恒定的长度,而歧管为$η$ -IENSTEIN。还发现了其他曲率条件,这意味着主要度量是爱因斯坦。之后,在研究的歧管上获得了平行的对称二阶协变张量,获得了一些结果。最后,给出了维度5的明确示例,并说明了一些结果。

Ricci-like solitons on Sasaki-like almost contact B-metric manifolds are the object of study. Cases, where the potential of the Ricci-like soliton is the Reeb vector field or pointwise collinear to it, are considered. In the former case, the properties for a parallel or recurrent Ricci-tensor are studied. In the latter case, it is shown that the potential of the considered Ricci-like soliton has a constant length and the manifold is $η$-Einstein. Other curvature conditions are also found, which imply that the main metric is Einstein. After that, some results are obtained for a parallel symmetric second-order covariant tensor on the manifolds under study. Finally, an explicit example of dimension 5 is given and some of the results are illustrated.

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