Formulas
- Hyperharmonic number
- Hyperperfect number
- Hyperreal number
- Hypertopology
- Hypograph (mathematics)
- Hyponormal operator
- Jennifer Balakrishnan
- Marcinkiewicz–Zygmund inequality
- Mashreghi–Ransford inequality
- Ono's inequality
- Preadditive category
- Quasitriangular Hopf algebra
- Signal-to-noise statistic
- Subtle cardinal
- Sums of powers