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
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.