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A new approach is suggested which allows to describe phenomenologically arbitrary topologies of the Universe. It consists in a generalizaton of third quantization. This quantization is carried out for the case of asymptotic closeness to a…

General Relativity and Quantum Cosmology · Physics 2007-05-23 A. A. Kirillov

An axiomatic approach to the mathematical models of the isotropic cosmology.

General Relativity and Quantum Cosmology · Physics 2016-05-23 Sergio Benenti

Map vertices of a graph to (not necessarily distinct) points of the plane so that two adjacent vertices are mapped at least a unit distance apart. The plane-width of a graph is the minimum diameter of the image of the vertex set over all…

Discrete Mathematics · Computer Science 2013-01-08 Marcin Kaminski , Paul Medvedev , Martin Milanic

The parameters of any model that satisfies the cosmological principle (the universe is homogeneous and isotropic on large scale), can be expressed through cosmographic parameters. In this paper, we perform this procedure for the Cardassian…

General Relativity and Quantum Cosmology · Physics 2017-07-27 Yu. L. Bolotin , M. I. Konchatnyi , O. A. Lemets , L. G. Zazunov

The alignments between galaxies, their underlying matter structures, and the cosmic web constitute vital ingredients for a comprehensive understanding of gravity, the nature of matter, and structure formation in the Universe. We provide an…

Some aspects of the multidimensional soliton geometry are considered.

Differential Geometry · Mathematics 2007-05-23 R. N. Syzdykova , Kur. R. Myrzakul , G. N. Nugmanova , R. Myrzakulov

Recent links between Finsler Geometry and the geometry of spacetimes are briefly revisited, and prospective ideas and results are explained. Special attention is paid to geometric problems with a direct motivation in Relativity and other…

Differential Geometry · Mathematics 2015-06-17 Miguel A. Javaloyes , Miguel Sánchez

This review is an up-to-date account of the use of numerical relativity to study dynamical, strong-gravity environments in a cosmological context. First, we provide a gentle introduction into the use of numerical relativity in solving…

General Relativity and Quantum Cosmology · Physics 2025-06-24 Josu C. Aurrekoetxea , Katy Clough , Eugene A. Lim

In this work we present a brief summary of the branch-cut cosmology as well as we approach topics not yet explored. Starting with an already explored topic, the theme of primordial singularity suppression, we approach for the first time…

General Relativity and Quantum Cosmology · Physics 2022-12-08 César A. Zen Vasconcellos , Peter O. Hess , José de Freitas Pacheco , Dimiter Hadjimichef , Benno Bodmann

Motivation and perspective for an exciting new research direction interconnecting logic, spacetime theory, relativity--including such revolutionary areas as black hole physics, relativistic computers, new cosmology--are presented in this…

General Relativity and Quantum Cosmology · Physics 2007-07-17 Judit X. Madarasz , Istvan Nemeti , Gergely Szekely

In this paper we introduce a path complex that can be regarded as a generalization of the notion of a simplicial complex. The main motivation for considering path complexes comes from directed graphs(digraphs). We obtain a new notion of the…

Combinatorics · Mathematics 2013-05-14 Alexander Grigor'yan , Yong Lin , Yuri Muranov , Shing-Tung Yau

In this essay a critical review of present conceptual problems in current cosmology is provided from a more philosophical point of view. In essence, a digression on how could philosophy help cosmologists in what is strictly their…

History and Philosophy of Physics · Physics 2011-11-14 F. J. Amaral Vieira

This paper provides a prospectus for a new way of thinking about the wavefunction of the universe: a $\Psi$-epistemic quantum cosmology. We present a proposal that, if successfully implemented, would resolve the cosmological measurement…

General Relativity and Quantum Cosmology · Physics 2017-11-15 Peter W. Evans , Sean Gryb , Karim P. Y. Thébault

The past few years have seen dramatic breakthroughs and spectacular and puzzling discoveries in astrophysics and cosmology. In many cases, the new observations can only be explained with the introduction of new fundamental physics. Here we…

High Energy Physics - Phenomenology · Physics 2010-12-09 Daniel S. Akerib , Sean M. Carroll , Marc Kamionkowski , Steven Ritz

We study the plane automorphisms given by polynomials with certain degree decompositions.

Commutative Algebra · Mathematics 2012-04-27 Kyungyong Lee

The dramatic confrontation between new observations and theories of the early and recent universe makes cosmology one of the most rapidly advancing fields in the physical sciences. The universe is a unique laboratory in which to probe…

Cosmology and Nongalactic Astrophysics · Physics 2016-02-03 C. J. A. P. Martins

What is the shape of the Universe? Is it finite or infinite ? Is space multi-connected to create ghost images of faraway cosmic sources? After a "dark age" period, the field of cosmic topology has now become one of the major concerns in…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Jean-Pierre Luminet

Some discussion of physical and geometrical interpretation of Einsteins theory of gravitation which is on basic of cosmology.

General Physics · Physics 2009-11-04 S. N. Pandey , B. K. Sinha

Based on the cosmological principle only, the method of describing the evolution of the Universe, called cosmography, is in fact a kinematics of cosmological expansion. The effectiveness of cosmography lies in the fact that it allows, based…

General Relativity and Quantum Cosmology · Physics 2018-12-07 Yu. L. Bolotin , V. A. Cherkaskiy , O. Yu. Ivashtenko , M. I. Konchatnyi , L. G. Zazunov

The last decade has seen an enormous increase of activity in the field of gravitational lensing, mainly driven by improvements of observational capabilities. I will review the basics of gravitational lens theory, just enough to understand…

Astrophysics · Physics 2015-06-24 Peter Schneider
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