English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

In this paper we have constructed the unconstrained action for theperturbations above Bianchi I type background in the most general scalar-tensortheory of gravity, the Horndeski theory. The result could be used now in thecontext of anisotropic early Universe models, no-go theorems and generalstability and in anisotropic probes of current cosmological perturbations.

Perturbations in Horndeski theory above anisotropic cosmological background