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

In the paper we consider two Finsler-like Riemannian metrics, which can be ina natural way introduced into general relativity. One of those metrics$\gamma_{ab}$ is degenerate and the second $h_{ab}$ is nondegenerate. We aremainly interested with the metric $h_{ab}$ and comparing the geometricstructure determined by this metric $h_{ab}$ with the geometric structuredetermined by the Lorentzian metric $g_{ab}$ of the underlying spacetime. Fullcomparison we have given for Friedmann Universis. The preliminary version ofthe paper was presented by one of us (J.G.) on conference POTOR 6 in Szczecin2019. We think that the our introduction of the Riemannian metric $h_{ab}$ intospacetime is simpler and more general than to so-called Wick rotation.

Riemannian Structure imposed on Friedmann and more general spacetimes