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 present work has the scope to show the relationship between four three-dimensional waves. This fact will be made in the form of coupling, us- ing for it the Cauchy-Riemann conditions for quaternionic functions (1), through certain Laplace's equation in (2). The coupling will relate those functions that determine the wave as well as their respective propagation speeds.

GEOMETRICAL QUATERNIONIC COUPLING FOR THREE DIMENSIONAL WAVE EQUATIONS