نتایج جستجو برای: quasi einstein space

تعداد نتایج: 593714  

2007
Mukut Mani Tripathi Jeong-Sik Kim MUKUT MANI TRIPATHI JEONG-SIK KIM

N(k)-quasi Einstein manifolds are introduced and studied.

, حسین غفارنژاد, ,

Pauli (or Einstein) frame is used to study the Brans-Dicke gravity theory, minimally coupled with dilatonic Brans-Dicke scalar field, whose solutions involve degenerate metrics. Some of these solutions exhibit transitions from an Euclidean domain to a Lorentzian space-time corresponding to a spatially flat Robertson-Walker cosmology.

Journal: :Proceedings of the American Mathematical Society 2011

Journal: :Communications of the Korean Mathematical Society 2007

Journal: :Involve 2022

In this note we adapt the work of Hall to find quasi-Einstein metrics on sphere bundles over products Fano Kaehler-Einstein manifolds, as well where only one end is blown down.

Journal: :Mathematische Nachrichten 2022

The goal of this article is to study compact quasi-Einstein manifolds with boundary. We provide boundary estimates for similar previous results obtained static and V-static spaces. In addition, we show that connected satisfying a suitable pinching condition must be isometric, up scaling, the standard hemisphere S + n $\mathbb {S}_{+}^{n}$ .

Journal: :Pacific Journal of Mathematics 2010

Journal: :Tamkang Journal of Mathematics 2008

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