Similar to 中身の詰まったトーラス

Euclidean geometry

Langley's Adventitious Angles

Cathetus

Regiomontanus' angle maximization problem

Hexagon

frame

Template:Topology-stub

Topological indistinguishability

Kirby–Siebenmann class

Locally compact group

Locally simply connected space

Local diffeomorphism

Klein bottle

Σ-compact space

Arithmetic topology

Image functors for sheaves

Bundle (mathematics)

Equivariant algebraic K-theory

Donaldson's theorem

Donaldson theory

Complex vector bundle

Separated sets

Closed set

Closed manifold

Poincaré duality

Boy's surface

Farrell–Jones conjecture

Hopf theorem