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

The author considers the rings of algebraic numbers integral at all but finitely many primes in the number fields, where it has been previously shown that Hubert's Tenth Problem is undecidable in the rings of algebraic integers, and proves that the problem is still undecidable in the bigger rings by constructing a diophantine definition of rational integers there.

A Diophantine definition of rational integers over some rings of algebraic numbers.