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

We define spacetimes that are asymptotically flat, except for a deficit solidangle $\alpha$, and present a definition of their ``ADM'' mass, which is finitefor this class of spacetimes, and, in particular, coincides with the value ofthe parameter $M$ of the global monopole spacetime studied by Vilenkin andBarriola . Moreover, we show that the definition is coordinate independent, andexplain why it can, in some cases, be negative.Comment: Late

Quasi-asymptotically flat spacetimes and their ADM mass