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

The previous discussion \cite{ezawa} on reducing the phase space of the firstorder Einstein gravity in 2+1 dimensions is reconsidered. We construct a \lq\lqcorrect" physical phase space in the case of positive cosmological constant,taking into account the geometrical feature of SO(3,1) connections. Aparametrization which unifies the two sectors of the physical phase space isalso given.Comment: Latex 8 pages (Crucial and essential changes have been made.

Addendum to ‘‘Classical and quantum evolutions of the de Sitter and the anti–de Sitter universes in 2+1 dimensions’’