Formulas
- Ericksen number
- Lady Windermere's Fan (mathematics)
- Ladyzhenskaya's inequality
- Hitchin system
- Hitting time
- Lagrange multipliers on Banach spaces
- Hjelmslev transformation
- Lagrange number
- Lagrange reversion theorem
- Isolated point
- Lagrangian Grassmannian
- Laguerre plane
- Isolated singularity
- Isomorphism
- Newton's identities