Formulas
- Kleinian model
- Knaster's condition
- Knaster–Tarski theorem
- Kneser's theorem (differential equations)
- Nijenhuis–Richardson bracket
- Standard Borel space
- Theorem of Bertini
- Lusternik–Schnirelmann category
- Matrix calculus
- Multiplicative character
- Relative canonical model
- Schubert calculus
- Tensor calculus
- Umbral calculus
- Unit interval