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

We prove a result on perfect cliques with respect to countably many G-deltarelations on a complete metric space. As an application, we show that a Polishgroup contains a free subgroup generated by a perfect set as long as itcontains any uncountable free subgroup. This answers a recent question ofG{\l}\c{a}b and Strobin.

Perfect independent sets with respect to infinitely many relations