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 Plus

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

Zendy Tools

Zendy Open

The equations of the formalism developed in part I are simplified by specialisation of the basic pair of null directions. The auxiliary vectors previously introduced are shown to have intrinsic geometric properties which are directly related to the complexity of the differential operators of the formalism. An Ansatz based on these properties is introduced and the calculation of the metric so defined is used to display the connection between the coordinate-free and coordinate-dependent solutions.

A formalism for the investigation of algebraically special metrics. II