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 find the equations that allow us to compute the position of the twointerior nodes (weighted Fermat-Torricelli points) w.r. to the weighted Steinerproblem for four points determining a tetrahedron in R^3. Furthermore, byapplying the solution w.r. to the weighted Steiner problem for a boundarytetrahedron, we calculate the twist angle between the two weighted Steinerplanes formed by one edge and the line defined by the two weighted Fermat-Torricelli points and a non-neighbouring edge and the line defined by the twoweighted Fermat-Torricelli points.

The twist angle of weighted Steiner minimal trees in the three dimensional Euclidean Space