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Article
Supersymmetric inflationary universe
In this paper we show that inflation can take place under the requirement of maximal symmetry for the vacuum state as a supersymmetric compactification condition together with cosmological principles. We get a...
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Article
Multipoint spatial correlation function on the self-similar observer homogeneous structure
We presented explicit forms of 2-and 3-point spatial correlation functions for observer homogeneous and self-similar structure. Our results have a little difference with the usual form in the 3-point case, but...
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Chapter and Conference Paper
Three Points Spatial Correlation Function on the Self Similar Observer Homogeneous Structure
We presented an explicit form of 2 and 3 points spatial correlation functions for observer homogeneous and self similar structure. Crucial difference from the usual hierarchical form is the fact that it increa...
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Article
Extremal black holes in the Hořava–Lifshitz gravity
We study the near-horizon geometry of extremal black holes in the z=3 Hořava–Lifshitz gravity with a flow parameter λ. For λ>1/2, near-horizon geometry of extremal black holes are AdS 2×S ...
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Article
Slowly rotating black holes in the Hořava–Lifshitz gravity
We investigate slowly rotating black holes in the Hořava–Lifshitz (HL) gravity. For Λ W =0 and λ=1, we find a slowly rotating black hole of the Kehagias–...
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Article
Equations of state in the Brans–Dicke cosmology
We investigate the Brans–Dicke (BD) theory with the potential as cosmological model to explain the present accelerating universe. In this work, we consider the BD field as a perfect fluid with the energy densi...
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Article
On the Ricci dark energy model
We study the Ricci dark energy model (RDE) which was introduced as an alternative to the holographic dark energy model. We point out that an accelerating phase of the RDE is that of a constant dark energy mode...
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Article
Future cosmological evolution in f(R) gravity using two equations of state parameters
We investigate the issues of future oscillations around the phantom divide (FOPD) for f(R) gravity. For this purpose, we introduce two types of energy density and pressure arisen from the f(R)-higher order curvat...
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Article
The absence of the Kerr black hole in the Hořava–Lifshitz gravity
We show that the Kerr metric does not exist as a fully rotating black hole solution to modified Hořava–Lifshitz (HL) gravity with Λ W =0 and λ=1. We do t...
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Article
Explaining dark energy with degenerate neutrino
Nowadays, most scientists believe that the universe is accelerating based on precise observational data[Astrophys. J. 607, 665 (2004); Phys. Rev. Lett. 83, 670 (1999)]. However, its explanation based on physical ...
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Article
A brief history of the Italian–Korean symposium on relativistic astrophysics
The series of Italian–Korean Symposia on Relativistic Astrophysics began in 1987, well before the Astrophysics Division of the Korean Physical Society was established in 1995. The symposiums brought together y...
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Article
Finding the best interacting dark energy model with observed data
Dark energy and dark matter problem is one of the most important issues in modern cosmology. There are many candidate models explaining the current observed dark matter and dark energy density parameters. One ...