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 Plus annual

Presents the access of premium content as premium feature

Premium Content

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 annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A set of power-law solutions of a conformal-violating Maxwell model with anon-standard scalar-vector coupling will be shown in this paper. In particular,we are interested in a coupling term of the form $X^{2n} F^{\mu\nu}F_{\mu\nu}$with $X$ denoting the kinetic term of the scalar field. Stability analysisindicates that the new set of anisotropic power-law solutions is unstableduring the inflationary phase. The result is consistent with the cosmic no-hairconjecture. We show, however, that a set of stable slowly expanding solutionsdoes exist for a small range of parameters $\lambda$ and $n$. Hence a smallanisotropy can survive during the slowly expanding phase.

Anisotropic power-law inflation for a conformal-violating Maxwell model