8 papers
Off-diagonal solutions in Einsteingravity modeling f(R) gravity and dynamical darkenergy vs Lambda CDM cosmology
Sergiu I. Vacaru
Modified gravity theories (MGTs) have long been studied as alternatives to general relativity (GR) and the standard Lambda CDM cosmological model. For example, exponential f(R) mod…
General off-diagonal integrability of metric and nonmetric geometric flow and Finsler-Lagrange-Hamilton modified Einstein equations
Sergiu I. Vacaru
Over the last seventy years, many Finsler-type geometric and modified gravity theories have been elaborated. They have been formulated in terms of different classes of Finsler gene…
Batalin-Fradkin-Vilkovisky quantization of Einstein gravity with off-diagonal solutions encoding HoÅava type generating functions
ElÅen Veli Veliev, Sergiu I. Vacaru
We develop and apply the Batalin-Fradkin-Vilkovisky (BFV) formalism for quantizing off-diagonal solutions of the Einstein equations in general relativity. In the quasi-classical li…
The Anholonomic Frame and Connection Deformation Method for constructing off-diagonal solutions in (modified) Einstein gravity and nonassociative geometric flows and Finsler-Lagrange-Hamilton theories
Laurenţiu Bubuianu, Julia O. Seti, Douglas Singleton +3
This article is a status report on the Anholonomic Frame and Connection Deformation Method, AFCDM, for constructing generic off-diagonal exact and parametric solutions in general r…
The fundamental physical importance of generic off-diagonal solutions and Grigori Perelman entropy in the Einstein gravity theory
Sergiu I. Vacaru, ElÅen V. Veliev
The gravitational field equations in general relativity (GR) consist of a sophisticated system of nonlinear partial differential equations. Solving such equations in some generic o…
Nonassociative geometry of nonholonomic phase spaces with star R-flux string deformations and (non) symmetric metrics
Sergiu I. Vacaru, ElÅen Veli Veliev, LaurenÅ£iu Bubuianu
We elaborate on nonassociative differential geometry of phase spaces endowed with nonholonomic (non-integrable) distributions and frames, nonlinear and linear connections, symmetri…