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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

The modular group PSL  2   ℤ contains many subgroups that are sharply transitive on the rational projective line ℚ ∪ ∞. If the field  E  is a purely transcendental extension of transcendency degree | E |, then PSL  2   E  contains free subgroups that are sharply transitive on the projective line  E  ∪ ∞. This yields wild infinite nearfields and sharply two-transitive permutation groups.

Free products and wild nearfields à la B. H. Neumann and Hans Zassenhaus