Resources for various mathematical subjects
Measure and probability theory
Functional analysis, PDEs and operator theory
Differential geometry and topology
Symplectic and Poisson geometry and topology
Fiber bundles, principal bundles, connections and characteristic classes
Lie groups, Lie algebras and their representations
Actions of Lie groups on manifolds
Riemannian and semi-riemannian geometry
Spin geometry and index theorems
Noncommutative geometry a la Connes