MATH-F-420: Differential geometry and applications Differential geometry is a part of mathematics dealing with smooth manifolds using ideas from tensor calculus and Lie algebra theory. The main tools of differential geometry are tensors, vector bundles and connections. I will give a gentle introduction to some of these topics. Approximate syllabus. 0. Inverse function theorem. Examples of submanifolds. Sard lemma and its applications. 1. Smooth manifolds, partition of unity, Whitney embedding theorems. 2. De Rham algebra, Cartan formula, Lie derivative, Stokes' theorem, de Rham cohomology, Poincare lemma, applications to topology. 3. Commutator of vector fields. Frobenius theorem. It would be helpful if the students know point-set topology and basics of topology on manifolds. Useful books: Milnor, J.: Topology from the Differentiable Viewpoint. Laurent Schwartz: Cours d' Analyse.