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 obtain an exhaustive classification of totally umbilical surfaces inunimodular and non-unimodular simply-connected 3-dimensional Lie groups endowedwith arbitrary left-invariant Riemannian metrics. This completes theclassification of totally umbilical surfaces in homogeneous Riemannian3-manifolds.

The classification of totally umbilical surfaces in homogeneous 3-manifolds