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Dilatons, flatness, and the cosmological constant
Physical Review D, 1988Symmetries that exist for some theories when considering small perturbations around some special backgrounds, which include flat but not de Sitter space and, among cosmological solutions spatially flat but generally not k = +- 1 Robertson-Walker solutions, are studied.
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A spatially-flat cosmological model
Astrophysics and Space Science, 1993zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Israelit, Mark, Rosen, Nathan
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Astrophysics and Space Science, 1991
A theory of gravitation in a flat space is briefly described, which gives a completely new view on cosmological problems. Instead of expansion of the Universe, a contraction of bodies and clusters is obtained. This theory excludes the ‘closed’ solutions as non-physical ones and gives a simple condition for the stability of gravitationally-bounded ...
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A theory of gravitation in a flat space is briefly described, which gives a completely new view on cosmological problems. Instead of expansion of the Universe, a contraction of bodies and clusters is obtained. This theory excludes the ‘closed’ solutions as non-physical ones and gives a simple condition for the stability of gravitationally-bounded ...
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Evolution of multidimensional flat anisotropic cosmological models
Physical Review D, 1993We study the dynamics of a flat multidimensional anisotropic cosmological model filled with an anisotropic fluidlike medium. By an appropriate choice of variables, the dynamical equations reduce to a two-dimensional dynamical system. We present a detailed analysis of the time evolution of this system and the conditions of the existence of spacetime ...
, Beloborodov +3 more
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Flat universe with decaying cosmological constant
The European Physical Journal Plus, 2014We have investigated the Robertson-Walker cosmological model with decaying vacuum density. We considered a special variation law in which the vacuum density Λ is proportional to the n-th power of the Hubble parameter H, i.e., Λ ∝ H n (where n is a constant) (Phys. Rev. D 58, 043506 (1998)).
R. K. Tiwari, Rameshwar Singh
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Arguments against the flatness problem in classical cosmology: a review
European Physical Journal H, 2021Phillip Helbig
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Creating spatial flatness by combining string gas cosmology and power law inflation
Physical Review D, 2020Vahid Kamali, Robert Brandenberger
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Peculiarities of Presocratic Flat Earth Cosmology
2018The issues discussed in this chapter concern peculiarities of the ancient Greek conception of a flat earth. As we will see in Part Two of this book, in the ancient Chinese gai tian system, everything, except the meaning of “falling,” is different.
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The problems of singularity particle horizon and flatness in quantum cosmology
Annals of Physics, 1983T Padmanabhan
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Predicting stress and flatness in hot-rolled strips during run-out table cooling
Journal of Manufacturing Processes, 2022Wen Peng
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