activity
20232026
collaborators

7 papers

math.MG2026

Area and diameter gaps for hyperbolic monotiles

Yixi Liao, Erxiao Wang

For each fixed , we prove a positive lower bound for the diameter of a compact simple geodesic -gonal monotile of the hyperbolic plane. We also prove a positive lower bound f…

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…

cs.CL2025

Graded strength of comparative illusions is explained by Bayesian inference

Yuhan Zhang, Erxiao Wang, Cory Shain

Like visual processing, language processing is susceptible to illusions in which people systematically misperceive stimuli. In one such case--the comparative illusion (CI), e.g., M…

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…