Subject
Geometry, Non-Euclidean.
9
Tessellations (Mathematics)
2
Automorphic functions.
1
Conformal mapping.
1
Differential equations, Partial.
1
Discontinuous groups.
1
Discrete groups.
1
Geometry, Hyperbolic.
1
Geometry, Non-Euclidean
1
Geometry, Plane
1
Group theory.
1
Hyperbolic spaces.
1
Numbers, Complex
1
Parallels (Geometry)
1