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 establish a criterion for a set of eigenfunctions of the one-dimensionalSchr\"{o}dinger operator with distributional potentials and boundary conditionscontaining the eigenvalue parameter to be a Riesz basis for$\mathscr{L}_2(0,\pi)$.

A Riesz basis criterion for Schr\"odinger operators with boundary conditions dependent on the eigenvalue parameter