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/

Zendy Pro

Presents the zaia usage as premium feature

ZAIA

Presents AI Discovery search usage as a premium feature

AI Discovery

Presents AI Discovery explain and summary usage as a premium feature

Content Analysis

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Presents the pdf analysis as premium feature

PDF Analysis

1500 Top-up

3000 Top-up

Zendy Basic

2500 Top-up

Zendy Unlimited

Presents the access of premium content as premium feature

Premium Content

A new version of the geometry inside a black hole is proposed, on the groundsof an idea given by Doran et al. The spacetime is still time dependent and is asolution of Einstein's equations with a stress tensor corresponding to ananisotropic fluid. The energy density of the fluid is proportional to $1/t^{2}$as in many dark energy models and the Brown-York quasilocal energy of the blackhole interior equals its mass $m$.Comment: 6 pages,one reference added, minor changes, no figure

ON THE BLACK HOLE INTERIOR SPACETIME