Formulas
- Structural equation modeling
- Struve function
- Sturm's theorem
- Symmetrization methods
- Sturm–Liouville theory
- Q-derivative
- Richardson's theorem
- Shearer's inequality
- Stolarsky mean
- Sturm–Picone comparison theorem
- Subbayya Sivasankaranarayana Pillai
- Stufe (algebra)
- Subgroup distortion
- Submersion (mathematics)
- Supermodule