Sylvester's Determinant Identity
where
is the submatrix of 
formed by the intersection of the subset 
of columns and 
of rows.- Hempel's Paradox
- Hendecagon
- Henneberg's Minimal Surface
- Hensel's Lemma
- Henstock-Kurzweil Integral
- Heptacontagon
- Heptadecagon
- Heptagon
- Heptagonal Number
- Heptagonal Pyramidal Number
- Heptahedron
- Heptakaidecagon
- Heptaparallelohedron
- Heptomino
- Herbrand's Theorem
- Hereditary Representation
- Heredity
- Hermann Grid Illusion
- Hermann-Hering Illusion
- Hermann-Mauguin Symbol
- Hermann's Formula
- Hermite Constants
- Hermite Differential Equation
- Hermite-Gauss Quadrature
- Hermite Interpolation