activity
20232025
collaborators

5 papers

math.CO2025

Cyclotomic points on varieties and all rational -monotiles

Jinjin Liang, Yixi Liao, Erxiao Wang

By computing all cyclotomic points on some algebraic varieties, we get an independent and efficient way to find all rational -monotiles for the sphere, thereby completing the…

math.CO2025

Tilings of the sphere by congruent pentagons V: Edge combination with rational angles

Jinjin Liang, Yixi Liao, Wenchuan Hu +1

We classify edge-to-edge tilings of the sphere by congruent pentagons with the edge combination and with rational angles in degree: they are a one-parameter family of symmet…

math.CO2025

Non-side-to-side tilings of the sphere by congruent triangles with any irrational angle

Wen Chen, Jinjin Liang, Erxiao Wang

We develop the basic and new tools for classifying non-side-to-side tilings of the sphere by congruent triangles. Then we prove that, if the triangle has any irrational angle in de…

math.CO2024

Tilings of the sphere by congruent pentagons IV: Edge combination with general angles

Junjie Shu, Yixi Liao, Erxiao Wang

We classify edge-to-edge tilings of the sphere by congruent pentagons with the edge combination and with any irrational angle in degree: they are three -parameter familie…

math.CO2023

Tilings of the sphere by congruent regular triangles and congruent rhombi

Qi Yuan, Erxiao Wang

All edge-to-edge tilings of the sphere by congruent regular triangles and congruent rhombi are classified as: (1) a -parameter family of protosets each admitting a unique $(2a^3…