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

In [B.Gruenbaum, G.C. Shephard, Spherical tilings with transitivityproperties, in: The geometric vein, Springer, New York, 1981, pp. 65-98], theyproved "for every spherical normal tiling by congruent tiles, if it isisohedral, then the graph is a Platonic solid, an Archimedean dual, an n-gonalbipyramid (n>2), or an n-gonal trapezohedron (i.e., the pseudo-double wheel of2n faces)". In the classification of spherical monohedral tilings, onenaturally asks an "inverse problem" of their result: For a spherical monohedraltiling of the above mentioned topologies, when is the tiling isohedral? Weprove that for any spherical monohedral quadrangular tiling being topologicallya trapezohedron, if the number of faces is 6, or 8, if the tile is a kite, adart or a rhombi, or if the tile is convex, then the tiling is isohedral.

Spherical tilings by congruent quadrangles over pseudo-double wheels (III) - the essential uniqueness in case of convex tiles