Homogeneous space
Duality (order theory)
Mathematics
Isomorphism (crystallography)
Manifold (fluid mechanics)
Pure mathematics
Dual (grammatical number)
Differential geometry
Differential (mechanical device)
Algebraic structure
Geometry
Algebra over a field
Topology (electrical circuits)
Combinatorics
Physics
Mechanical engineering
Art
Crystal structure
Chemistry
Literature
Engineering
Thermodynamics
Crystallography
