Borel's Expansion
Let 
be any function for which the integral
converges. Then the expansion
where
is the Gamma Function, is usually an Asymptotic Series for 
.- Kiepert's Conics
- Kiepert's Hyperbola
- Kiepert's Parabola
- Kieroid
- Killing's Equation
- Killing Vectors
- Kimberling Sequence
- Kimberling Shuffle
- Kings Problem
- King Walk
- Kinney's Set
- Kinoshita-Terasaka Knot
- Kinoshita-Terasaka Mutants
- Kirby Calculus
- Kirby's List
- Kirkman's Schoolgirl Problem
- Kirkman Triple System
- Kissing Circles Problem
- Kissing Number
- Kiss Surface
- Kite
- Klarner-Rado Sequence
- Klarner's Theorem
- Klein-Beltrami Model
- Klein Bottle