Maximal Zero-Sum-Free Set
A set having the largest number 
of distinct residue classes modulo 
so that no Subset has zero sum.
References
Guy, R. K. ``Maximal Zero-Sum-Free Sets.'' §C15 in Unsolved Problems in Number Theory, 2nd ed. New York: Springer-Verlag, pp. 129-131, 1994.
- Hairy Ball Theorem
- Half
- Half-Closed Interval
- Half-Normal Distribution
- Half-Open Interval
- Halley's Irrational Formula
- Halley's Method
- Halley's Rational Formula
- Hall-Janko Group
- Halphen Constant
- Halphen's Transformation
- Halting Problem
- Hamiltonian Circuit
- Hamiltonian Cycle
- Hamiltonian Graph
- Hamiltonian Group
- Hamiltonian Map
- Hamiltonian Path
- Hamiltonian System
- Hamilton's Equations
- Hamilton's Rules
- Hammer-Aitoff Equal-Area Projection
- Hamming Function
- Ham Sandwich Theorem
- Handedness