Results 31 to 40 of about 2,648,151 (44)

Non-geodesic timelike observers and the ultralocal limit. [PDF]

open access: yesEur Phys J C Part Fields
Saadati R, Valsan L, Faraoni V.
europepmc   +1 more source

Think locally, act locally: detection of small, medium-sized, and large communities in large networks. [PDF]

open access: yesPhys Rev E Stat Nonlin Soft Matter Phys, 2015
Jeub LG   +4 more
europepmc   +1 more source
Some of the next articles are maybe not open access.

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Loop Quantum Cosmology: Physics of Singularity Resolution and its Implications

, 2023
The occurrence of singularities where spacetime curvature becomes infinite and geodesic evolution breaks down are inevitable events in classical general relativity (GR) unless one chooses an exotic matter violating weak energy condition.
Bao-Fei Li, Parampreet Singh
semanticscholar   +1 more source

Cosmology in nonlocal gravity

, 2023
In this chapter we review the recent developments of realizing $R^2$-like inflation in the framework of a most general UV nonlocal extension of Einstein's general theory of relativity (GR).
A. Koshelev, K. Kumar, A. Starobinsky
semanticscholar   +1 more source

Elements of classical and quantum gravity

, 2021
This chapter has two purposes; to describe a few elements of differential geometry that are required in different places in this work, and to provide, for completeness, a short introduction to general relativity (GR) and the problem of its quantization ...
J. Zinn-Justin
semanticscholar   +1 more source

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