Nonholonomic Jet Deformations and Exact Solutions for Modified Ricci Soliton and Einstein Equations

Abstract

Let $\mathbf{g}$ be a pseudo--Riemanian metric of arbitrary signature on a manifold $\mathbf{V}$ with conventional $n+n$ dimensional splitting, $n\ge 2,$ determined by a nonholonomic (non--integrable) distribution $\mathcal{N}$ defining a generalized (nonlinear) connection and associated nonholonomic frame structures. We shall work with a correspondingly adapted linear metric compatible connection $\hat{\mathbf{D}}$ and its nonzero torsion $\hat{\mathcal{T}}$, both completely determined by $\mathbf{g}$. Our first goal is to prove that there are certain generalized frame and/or jet transforms and prolongations with $(\mathbf{g},\mathbf{V})\to (\hat{\mathbf{g}},\hat{\mathbf{V}})$ into explicit classes of solutions of some generalized Einstein equations $\hat{\mathbf{R}}ic=\Lambda \hat{\mathbf{g}}$, $\Lambda =const$, encoding various types of nonholonomic) Ricci soliton configurations and/or jet variables and symmetries. The second goal is to solve additional constraint equations for zero torsion, $\hat{\mathcal{T}}=0$, on generalized solutions constructed in explicit forms with jet variables and extract Levi-Civita configurations. This allows us to find generic off-diagonal exact solutions depending on all space time coordinates on $\mathbf{V}$ via generating and integration functions and various classes of constant jet parameters and associated symmetries. We shall study (third goal) how such generalized metrics and connections can be related by so-called "half-conformal" and/ or jet deformations of certain sub-classes of solutions with one, or two, Killing symmetries. Finally, there are considered some examples when exact solutions are constructed as nonholonomic jet prolongations of the Kerr metrics, with possible Ricci soliton deformations, and characterized by nonholonomic jet structures and generalized connections.

36 pages with table of content, latex 2e, 11 pt, v3 accepted to IJGMMP. arXiv admin note: text overlap with arXiv:1312.4844

References in corpus (9)

• Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
• Resummation of Massive Gravity
• Resembling dark energy and modified gravity with Finsler-Randers cosmology
• Nonholonomic Ricci Flows: II. Evolution Equations and Dynamics
• Starobinsky-type Inflation in Dynamical Supergravity Breaking Scenarios
• Off-Diagonal Deformations of Kerr Black Holes in Einstein and Modified Massive Gravity and Higher Dimensions
• Parametric Nonholonomic Frame Transforms and Exact Solutions in Gravity
• Foliation, jet bundle and quantization of Einstein gravity
• Cosmic magnetization in curved and Lorentz violating space-times

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• Foliation, jet bundle and quantization of Einstein gravity
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