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Tilings of the sphere by congruent quadrilaterals III: edge combination a3b with general angles

2022/06/30 by Yixi Liao, Liao, Yixi, Pinren Qian +5 · 2 citations
Materials Science · Engineering · Mathematics · #Quasicrystal Structures and Properties #Advanced Materials and Mechanics #Mathematics and Applications

paper · pdf · doi:10.48550/arxiv.2206.15342

Abstract

Edge-to-edge tilings of the sphere by congruent quadrilaterals are completely classified in a series of three papers. This last one classifies the case of a3b-quadrilaterals with some irrational angle: there are a sequence of 1-parameter families of quadrilaterals admitting 2-layer earth map tilings together with their basic flip modifications under extra condition, and 5 sporadic quadrilaterals each admitting a special tiling. A summary of the full classification is presented in the end.

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