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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The instanton representation of Plebanski gravity admits a natural canonicalstructure where the (densitized) eigenvalues of the CDJ matrix are the basicmomentum space variables. Canonically conjugate configuration variables existfor six distinct configurations in the full theory, referred to as quantizableconfigurations. The CDJ matrix relates to the Petrov classification andprincipal null directions of spacetime, which we directly correlate to thesequantizable degrees of freedom. The implication of this result is the abilityto perform a quantization procedure for spacetimes of Petrov Type I, D, and O,using the instanton representation.

Instanton representation of Plebanski gravity: XIII. Canonical structure of the Petrov classification of nondegenerate spacetimes