Papers › Classification of Teleparallel Horndeski Cosmology via Noether Symmetries

Classification of Teleparallel Horndeski Cosmology via Noether Symmetries

30 Dec 2021arXiv:2112.15045links table onlyarchive 2025-07-28

Konstantinos F. Dialektopoulos, Jackson Levi Said, Zinovia Oikonomopoulou

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Teleparallel Horndeski theory offers an avenue through which to circumvent the speed constraint of gravitational waves in an efficient manner. However, this provides an even larger plethora of models due to the increase in action terms. In this work we explore these models in the context of cosmological systems. Using Noether point symmetries, we classify the dynamical systems that emerge from Teleparallel Horndeski cosmologies. This approach is very effective at selecting specific models in the general class of second-order Teleparallel scalar-tensor theories, as well as for deriving exact solutions within a cosmological context. By iterating through the Lagrangians selected through the Noether symmetries, we solve for a number of cosmological systems which provides new cosmological systems to be studied.

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