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 employ the similar operators method for studying the spectral properties of the Sturm—Liouville operator generated by the differential expression l (y ) = −y '' − vy with a complex potential v and subject to periodic boundary conditions y (0) = y (2 ), y ' (0) = y ' (2 ). We obtain the results on the asymptotics for the spectrum of the operator.

Asymptotics for eigenvalues of Sturm - Liouville operator with periodic boundary conditions