Works about FRIEDMANN equations

Results: 634

Recent Developments in Degenerate Higher Order Scalar Tensor Theories.

Published in:

Annalen der Physik, 2025, v. 537, n. 2, p. 1, doi. 10.1002/andp.202400263

By:

Lazanu, Andrei

Publication type:

Article

Inflationary universe with a viscous fluid avoiding self-reproduction.

Published in:

Annalen der Physik, 2017, v. 529, n. 1/2, p. n/a, doi. 10.1002/andp.201600195

By:

Brevik, I.;
Elizalde, E.;
Obukhov, V. V.;
Timoshkin, A. V.

Publication type:

Article

Cosmological Distances Scale. Part 15: Cosmic Jerk and Gravitational Dipole of Inhomogeneity.

Published in:

Measurement Techniques, 2023, v. 66, n. 3, p. 149, doi. 10.1007/s11018-023-02203-y

By:

Levin, S. F.

Publication type:

Article

Cosmological distance scale. Part 8. The scale factor.

Published in:

Measurement Techniques, 2019, v. 62, n. 1, p. 7, doi. 10.1007/s11018-019-01578-1

By:

Levin, S. F.

Publication type:

Article

Differing Manifestations of Spatial Curvature in Cosmological FRW Models.

Published in:

Universe (2218-1997), 2025, v. 11, n. 5, p. 143, doi. 10.3390/universe11050143

By:

Shimon, Meir;
Rephaeli, Yoel

Publication type:

Article

On the Perturbed Friedmann Equations in Newtonian Gauge.

Published in:

Universe (2218-1997), 2025, v. 11, n. 2, p. 64, doi. 10.3390/universe11020064

By:

de Haro, Jaume;
Elizalde, Emilio;
Pan, Supriya

Publication type:

Article

Editorial to the Special Issue "Universe: Feature Papers 2023—Cosmology".

Published in:

Universe (2218-1997), 2024, v. 10, n. 10, p. 380, doi. 10.3390/universe10100380

By:

Bamba, Kazuharu

Publication type:

Article

From the Janis–Newman–Winicour Naked Singularities to the Einstein–Maxwell Phantom Wormholes.

Published in:

Universe (2218-1997), 2024, v. 10, n. 8, p. 328, doi. 10.3390/universe10080328

By:

Gao, Changjun;
Qiu, Jianhui

Publication type:

Article

On Dark Matter and Dark Energy in CCC+TL Cosmology.

Published in:

Universe (2218-1997), 2024, v. 10, n. 6, p. 266, doi. 10.3390/universe10060266

By:

Gupta, Rajendra P.

Publication type:

Article

Relations between Newtonian and Relativistic Cosmology.

Published in:

Universe (2218-1997), 2024, v. 10, n. 6, p. 263, doi. 10.3390/universe10060263

By:

de Haro, Jaume

Publication type:

Article

Cosmological Test of an Ultraviolet Origin of Dark Energy.

Published in:

Universe (2218-1997), 2024, v. 10, n. 5, p. 193, doi. 10.3390/universe10050193

By:

Christiansen, Hans;
Takács, Bence;
Hansen, Steen H.

Publication type:

Article

Dynamical Analysis of the Redshift Drift in FLRW Universes.

Published in:

Universe (2218-1997), 2024, v. 10, n. 4, p. 162, doi. 10.3390/universe10040162

By:

Lobo, Francisco S. N.;
Mimoso, José Pedro;
Santiago, Jessica;
Visser, Matt

Publication type:

Article

Possible Wormholes in a Friedmann Universe.

Published in:

Universe (2218-1997), 2023, v. 9, n. 11, p. 465, doi. 10.3390/universe9110465

By:

Bronnikov, Kirill A.;
Kashargin, Pavel E.;
Sushkov, Sergey V.

Publication type:

Article

Newtonian Cosmology and Evolution of κ -Deformed Universe.

Published in:

Universe (2218-1997), 2023, v. 9, n. 7, p. 343, doi. 10.3390/universe9070343

By:

Harikumar, E.;
Sreekumar, Harsha;
Panja, Suman Kumar

Publication type:

Article

A Wheeler–DeWitt Quantum Approach to the Branch-Cut Gravitation with Ordering Parameters.

Published in:

Universe (2218-1997), 2023, v. 9, n. 6, p. 278, doi. 10.3390/universe9060278

By:

Bodmann, Benno August Ludwig;
Vasconcellos, César Augusto Zen;
Bechstedt, Peter Otto Hess;
de Freitas Pacheco, José Antonio;
Hadjimichef, Dimiter;
Razeira, Moisés;
Degrazia, Gervásio Annes

Publication type:

Article

The Evolution of a Higher-Dimensional FRW Universe with Variable G and Λ and Particle Creation.

Published in:

Universe (2218-1997), 2023, v. 9, n. 6, p. 255, doi. 10.3390/universe9060255

By:

Alfedeel, Alnadhief H. A.

Publication type:

Article

Effective f (R) Actions for Modified Loop Quantum Cosmologies via Order Reduction.

Published in:

Universe (2218-1997), 2023, v. 9, n. 4, p. 181, doi. 10.3390/universe9040181

By:

Ribeiro, Ana Rita;
Vernieri, Daniele;
Lobo, Francisco S. N.

Publication type:

Article

Resolution of Cosmological Singularity in Hořava–Lifshitz Cosmology.

Published in:

Universe (2218-1997), 2023, v. 9, n. 4, p. 160, doi. 10.3390/universe9040160

By:

Czuchry, Ewa

Publication type:

Article

Particles of a de Sitter Universe.

Published in:

Universe (2218-1997), 2023, v. 9, n. 2, p. 59, doi. 10.3390/universe9020059

By:

Şengör, Gizem

Publication type:

Article

Avoidance of Singularity during the Gravitational Collapse with String T-Duality Effects.

Published in:

Universe (2218-1997), 2023, v. 9, n. 1, p. 41, doi. 10.3390/universe9010041

By:

Jusufi, Kimet

Publication type:

Article

Gauge-Invariant Perturbations at a Quantum Gravity Bounce.

Published in:

Universe (2218-1997), 2023, v. 9, n. 1, p. 29, doi. 10.3390/universe9010029

By:

Gielen, Steffen;
Mickel, Lisa

Publication type:

Article

Sign Switching Dark Energy from a Running Barrow Entropy.

Published in:

Universe (2218-1997), 2022, v. 8, n. 10, p. N.PAG, doi. 10.3390/universe8100541

By:

Di Gennaro, Sofia;
Ong, Yen Chin

Publication type:

Article

Quantum Models for Cosmology.

Published in:

Universe (2218-1997), 2022, v. 8, n. 10, p. N.PAG, doi. 10.3390/universe8100531

By:

Gazeau, Jean-Pierre;
Małkiewicz, Przemysław

Publication type:

Article

Radio Pulsars in an Electromagnetic Universe.

Published in:

Universe (2218-1997), 2022, v. 8, n. 10, p. N.PAG, doi. 10.3390/universe8100496

By:

Rayimbaev, Javlon;
Jumaniyozov, Shokhzod;
Umaraliyev, Maksud;
Abdujabbarov, Ahmadjon

Publication type:

Article

Big Bang Nucleosynthesis Constraints on f (T , T G) Gravity.

Published in:

Universe (2218-1997), 2022, v. 8, n. 9, p. 486, doi. 10.3390/universe8090486

By:

Asimakis, Petros;
Saridakis, Emmanuel N.;
Basilakos, Spyros;
Yesmakhanova, Kuralay

Publication type:

Article

General Thermodynamic Properties of FRW Universe and Heat Engine.

Published in:

Universe (2218-1997), 2022, v. 8, n. 8, p. 400, doi. 10.3390/universe8080400

By:

Debnath, Ujjal

Publication type:

Article

Late Time Acceleration of the Universe from Quantum Gravity.

Published in:

Universe (2218-1997), 2022, v. 8, n. 3, p. 163, doi. 10.3390/universe8030163

By:

Pang, Xiankai

Publication type:

Article

An Extension of Newton Gravity Formula Considering the Universe Expansion Effects.

Published in:

INCAS Bulletin, 2019, v. 11, n. 2, p. 45, doi. 10.13111/2066-8201.2019.11.2.4

By:

BERBENTE, Corneliu;
BERBENTE, Sorin;
BREBENEL, Marius

Publication type:

Article

Bianchi Type V Inflationary Cosmological Model with Bulk Viscosity in General Relativity.

Published in:

Journal of Nano- & Electronic Physics, 2023, v. 15, n. 4, p. 1, doi. 10.21272/jnep.15(4).04029

By:

Maheshwari, Varsha;
Poonia, Laxmi

Publication type:

Article

Interactive, and Other Cosmological Models, Recent Observational Data and Tension.

Published in:

Physics of Atomic Nuclei, 2021, v. 84, n. 4, p. 595, doi. 10.1134/S106377882104027X

By:

Sharov, G. S.

Publication type:

Article

Axionic domain walls at Pulsar Timing Arrays: QCD bias and particle friction.

Published in:

Journal of High Energy Physics, 2023, v. 2023, n. 11, p. 1, doi. 10.1007/JHEP11(2023)169

By:

Blasi, Simone;
Mariotti, Alberto;
Rase, Aäron;
Sevrin, Alexander

Publication type:

Article

Dynamical Compactification with Matter.

Published in:

Journal of High Energy Physics, 2023, v. 2023, n. 6, p. 1, doi. 10.1007/JHEP06(2023)181

By:

Kim, Kyung Kiu;
Koh, Seoktae;
Tumurtushaa, Gansukh

Publication type:

Article

Non-linear stability of α′-corrected Friedmann equations.

Published in:

Journal of High Energy Physics, 2023, v. 2023, n. 4, p. 1, doi. 10.1007/JHEP03(2023)119

By:

Bernardo, Heliudson;
Chojnacki, Jan;
Comeau, Vincent

Publication type:

Article

Nature of entropy in a scalar-tensor theory of gravity.

Published in:

Turkish Journal of Physics, 2018, v. 42, n. 6, p. 621, doi. 10.3906/fiz-1712-12

By:

SIĞINÇ, Onur;
SALTI, Mustafa;
YANAR, Hilmi;
AYDOĞDU, Oktay

Publication type:

Article

Cosmological Models.

Published in:

Astronomy Reports, 2024, v. 68, p. S69, doi. 10.1134/S1063772924701063

By:

Bisnovatyi-Kogan, G. S.

Publication type:

Article

Friedmann Cosmological Equations in the Sharma–Mittal Entropy Formalism.

Published in:

Astronomy Reports, 2022, v. 66, n. 9, p. 786, doi. 10.1134/S1063772922100080

By:

Kolesnichenko, A. V.;
Marov, M. Ya.

Publication type:

Article

Reheating Temperature from D-Term Cosmological Inflation Braneworld.

Published in:

Astronomy Reports, 2019, v. 63, n. 12, p. 990, doi. 10.1134/S1063772919120059

By:

Salamate, F.;
Khay, I.;
Ferricha-Alami, M.;
Chakir, H.;
Bennai, M.

Publication type:

Article

Modeling Dark-Matter Halos. Verification of the Entropy Approach to the Cusp Problem.

Published in:

Astronomy Reports, 2019, v. 63, n. 5, p. 372, doi. 10.1134/S1063772919050068

By:

Tkachev, M. V.;
Pilipenko, S. V.;
Carlesi, E.

Publication type:

Article

The scale factor in a Universe with dark energy.

Published in:

Astronomy Reports, 2016, v. 60, n. 4, p. 425, doi. 10.1134/S1063772916030136

By:

Sazhin, M.;
Sazhina, O.

Publication type:

Article

Ordinal notation systems corresponding to Friedman's linearized well-partial-orders with gap-condition.

Published in:

Archive for Mathematical Logic, 2017, v. 56, n. 5/6, p. 607, doi. 10.1007/s00153-017-0559-2

By:

Rathjen, Michael;
Van der Meeren, Jeroen;
Weiermann, Andreas

Publication type:

Article

The Scale-Invariant Vacuum Paradigm: Main Results and Current Progress Review (Part II) †.

Published in:

Symmetry (20738994), 2024, v. 16, n. 6, p. 657, doi. 10.3390/sym16060657

By:

Gueorguiev, Vesselin G.;
Maeder, Andre

Publication type:

Article

Einstein, Barcelona, Symmetry & Cosmology: The Birth of an Equation for the Universe.

Published in:

Symmetry (20738994), 2023, v. 15, n. 7, p. 1470, doi. 10.3390/sym15071470

By:

Elizalde, Emilio

Publication type:

Article

Polarization of Gravitational Waves in Modified Gravity.

Published in:

Symmetry (20738994), 2023, v. 15, n. 4, p. 832, doi. 10.3390/sym15040832

By:

Khlopov, Maxim;
Chowdhury, Sourav Roy

Publication type:

Article

Dynamical Analysis of the Covarying Coupling Constants in Scalar–Tensor Gravity.

Published in:

Symmetry (20738994), 2023, v. 15, n. 3, p. 709, doi. 10.3390/sym15030709

By:

Cuzinatto, Rodrigo R.;
Gupta, Rajendra P.;
Pompeia, Pedro J.

Publication type:

Article

Copernican Paradigm beyond FLRW.

Published in:

Symmetry (20738994), 2023, v. 15, n. 2, p. 428, doi. 10.3390/sym15020428

By:

Krishnan, Chethan;
Mondol, Ranjini;
Jabbari, M. M. Sheikh

Publication type:

Article

Dynamical Reason for a Cyclic Universe.

Published in:

Symmetry (20738994), 2021, v. 13, n. 12, p. 2272, doi. 10.3390/sym13122272

By:

Gu, Ying-Qiu

Publication type:

Article

Holographic Foam Cosmology: From the Late to the Early Universe.

Published in:

Symmetry (20738994), 2021, v. 13, n. 3, p. 435, doi. 10.3390/sym13030435

By:

Ng, Yee Jack;
Fields, Chris

Publication type:

Article

The d -Dimensional Cosmological Constant and the Holographic Horizons.

Published in:

Symmetry (20738994), 2021, v. 13, n. 2, p. 237, doi. 10.3390/sym13020237

By:

Yurov, Artyom V.;
Yurov, Valerian A.;
Oikonomou, Vasileios

Publication type:

Article

Generalized Fibonacci Numbers, Cosmological Analogies, and an Invariant.

Published in:

Symmetry (20738994), 2021, v. 13, n. 2, p. 200, doi. 10.3390/sym13020200

By:

Faraoni, Valerio;
Atieh, Farah;
Ungar, Abraham

Publication type:

Article

Extending Friedmann Equations Using Fractional Derivatives Using a Last Step Modification Technique: The Case of a Matter Dominated Accelerated Expanding Universe.

Published in:

Symmetry (20738994), 2021, v. 13, n. 2, p. 174, doi. 10.3390/sym13020174

By:

Barrientos, Ernesto;
Mendoza, Sergio;
Padilla, Pablo

Publication type:

Article