Semistable
When a Prime 
divides the Discriminant of a Elliptic Curve 
, twoor all three roots of become congruent mod . An Elliptic Curve is semistable if, for all such Primes ,only two roots become Congruent mod (with more complicated definitions for 
or 3).
- Hypocycloid--4-Cusped
- Hypocycloid Evolute
- Hypocycloid Involute
- Hypocycloid Pedal Curve
- Hypoellipse
- Hypotenuse
- Hypothesis
- Hypothesis Testing
- Hypotrochoid
- Hypotrochoid Evolute
- Hyzer's Illusion
- Hénon Attractor
- Hénon-Heiles Equation
- Hénon Map
- Hölder Condition
- Hölder Integral Inequality
- Hölder Sum Inequality
- i
- I
- Iamond
- Ice Fractal
- Icosagon
- Icosahedral Equation
- Icosahedral Graph
- Icosahedral Group