Noncommutative algebras Noncommutative rings Algebraic geometry -- Algebraic groups -- None of the above, but in this section Approximation theory Commutative rings Configuration space Grassmann manifolds Group theory and generalizations -- Linear algebraic groups and related topics -- Linear algebraic groups over the reals, the complexes, the quaternions Group theory and generalizations -- Linear algebraic groups and related topics -- Representation theory Invariants Lie algebras Lie groups Linear and multilinear algebra; matrix theory -- Basic linear algebra -- Vector and tensor algebra, theory of invariants Matrices Polytopes Topology Transformations (Mathematics)