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Perturbations in Non-Flat Cosmology for $f(T)$ gravity ...
Abstract: The study of cosmological perturbation theory in $f(T)$ gravity is a topic of great interest in teleparallel gravity since this is one of the simplest generalizations of the theory that modifies the teleparallel equivalent of general relativity. In this work, we explore the possibility of a non-flat FLRW background solution and perform perturbations for positively as well as negatively curved spatial geometries, together with a comparison to the flat case. We determine the generalized behaviour of the perturbative modes for this non-flat FLRW setting for arbitrary $f(T)$ models, when the most general homogeneous and isotropic background tetrads are used. We also identify propagating modes in this setup, and relate this with the case of a flat cosmology. ... : 21 pagers, no figures ...
Keyword: FOS Physical sciences; General Relativity and Quantum Cosmology gr-qc; High Energy Physics - Theory hep-th
URL: https://dx.doi.org/10.48550/arxiv.2203.00619
https://arxiv.org/abs/2203.00619
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2
Fairlex: A multilingual benchmark for evaluating fairness in legal text processing ...
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Fairlex: A multilingual benchmark for evaluating fairness in legal text processing ...
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IMT Vault ...
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IMT Vault ...
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FairLex: A Multilingual Benchmark for Evaluating Fairness in Legal Text Processing ...
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7
One Country, 700+ Languages: NLP Challenges for Underrepresented Languages and Dialects in Indonesia ...
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Introducing Neural Bag of Whole-Words with ColBERTer: Contextualized Late Interactions using Enhanced Reduction ...
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Coloring the Blank Slate: Pre-training Imparts a Hierarchical Inductive Bias to Sequence-to-sequence Models ...
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