C
- Cartan decomposition
- Cartan matrix
- Cartan subalgebra
- Cartan subgroup
- Casimir invariant
- Clebsch-Gordan coefficients
- Compact Lie group
- Complex reflection group
- coroot
- Coxeter group
- Coxeter number
- Cuspidal representation
Read more about this topic: Glossary Of Semisimple Groups