## 212 Citations

### Linear cosmological perturbation theory

- Physics
- 2015

Cosmological perturbation theory is believed to provide the theoretical framework for understanding and explaining the large-scale structure of our universe. The physical principle behind the…

### Large-scale peculiar motions and cosmic acceleration

- Physics
- 2009

Recent surveys seem to support bulk peculiar velocities well in excess of those anticipated by the standard cosmological model. In view of these results, we consider here some of the theoretical…

### General relativistic effects on cosmological observations

- Physics
- 2012

Over the last few decades enormous progress has been made in the study of the Universe and we are now entering the age of precision cosmology, with numerous upcoming high precision surveys expected…

### Relativistic approach to the kinematics of large-scale peculiar motions

- Physics
- 2019

We consider the linear kinematics of large-scale peculiar motions in a perturbed Friedmann universe. In so doing, we take the viewpoint of the "real" observers that move along with the peculiar flow,…

### Large-scale peculiar velocity fields: Newtonian vs relativistic treatment

- PhysicsAstrophysics and Space Science
- 2021

We employ a perturbative analysis to study the evolution of large-scale peculiar velocity fields within the framework of Newtonian gravity and then compare our results to those of the corresponding…

### ON THE LAGRANGIAN PERTURBATION THEORY OF STRUCTURE FORMATION IN GENERAL RELATIVITY

- Physics
- 2018

In this thesis we focus on two different problems in the study of the formation and evolution of large scale structure using the Lagrangian perturbation approach. First, we study the effects of…

### Linear and non-linear effects in structure formation

- Physics
- 2010

The subject matter of this thesis is the formation of large-scale structure in the universe. Most of the study has dealt with the non-linear evolution of cosmological uctuations, focusing on the…

### The Intrinsic Bispectrum of the Cosmic Microwave Background

- Physics
- 2015

Cosmology, intended as the study of the origin and evolution of the Universe and its components, has advanced from being a philosophical discipline to a data-driven science. Much of this progress was…

### Magnetized cosmological perturbations in the post-recombination era

- Physics
- 2016

We study inhomogeneous magnetised cosmologies through the post-recombination era in the framework of Newtonian gravity and the ideal-magnetohydrodynamic limit. The nonlinear kinematic and dynamic…

### General relativistic, nonstandard model for the dark sector of the Universe

- Physics
- 2014

We present a general relativistic version of the self-gravitating fluid model for the dark sector of the Universe (darkon fluid) introduced in Stichel and Zakrzewski (Phys Rev D 80:083513, 2009) and…

## References

SHOWING 1-10 OF 727 REFERENCES

### Dynamical Systems and Cosmology

- Physics
- 2003

Dynamical systems theory is especially well-suited for determining the possible asymptotic states (at both early and late times) of cosmological models, particularly when the governing equations are…

### Cosmology: The Origin and Evolution of Cosmic Structure

- Physics
- 1995

PART I: Cosmological Methods The Relativistic Universe The Friedmann Models Alternative Cosmologies: Past and Present Observational Properties of the Universe. PART II: Evolution of the Big Bang…

### Inhomogeneous Cosmologies, the Copernican Principle and the Cosmic Microwave Background: More on the EGS Theorem

- Physics, Mathematics
- 2003

We discuss inhomogeneous cosmological models which satisfy the Copernican principle. We construct some inhomogeneous cosmological models starting from the ansatz that the all the observers in the…

### On globally static and stationary cosmologies with or without a cosmological constant and the dark energy problem

- Physics
- 2006

In the framework of spatially averaged inhomogeneous cosmologies in classical general relativity, effective Einstein equations govern the regional and the global dynamics of averaged scalar variables…

### Dynamics of dark energy

- Physics
- 2006

We review in detail a number of approaches that have been adopted to try and explain the remarkable observation of our accelerating universe. In particular we discuss the arguments for and recent…

### Quasi-Newtonian dust cosmologies

- PhysicsClassical and Quantum Gravity
- 1998

Exact dynamical equations for a generic dust matter source field in a cosmological context are formulated with respect to a non-comoving Newtonian-like timelike reference congruence and investigated…

### Cosmic Microwave Background Anisotropies in the Cold Dark Matter Model: A Covariant and Gauge-invariant Approach

- Physics
- 1998

We present a fully covariant and gauge-invariant calculation of the evolution of anisotropies in the cosmic microwave background radiation. We use the physically appealing covariant approach to…

### Averaging and Cosmological Observations

- Physics
- 2007

The gravitational field equations on cosmological scales are obtained by averaging the Einstein field equations of general relativity. By assuming spatial homogeneity and isotropy on the largest…

### Reionization and small-scale fluctuations in the microwave background

- Physics
- 1987

It is shown that electron scattering off the moving ionized medium can regenerate arcminute fluctuations in almost all models of galaxy formation. Explicit calculations are presented for…