Differential Topology
Smooth manifolds and their global structure: tangent spaces, vector bundles, and de Rham cohomology.
10 Topics
De Rham Cohomology
De Rham cohomology uses differential forms to study the topological shape of smooth manifolds. Learners will understand how to compute cohomology groups, detect topological holes, and relate analytic properties to global geometric structures.
Differential Forms
Differential forms are mathematical objects that generalize multivariable calculus to smooth manifolds. Learners will understand how to integrate functions over curved spaces, compute exterior derivatives, and apply Stokes' theorem in higher dimensions.
Embedding Theorems
Embedding theorems establish when and how abstract manifolds can be realized as submanifolds of Euclidean space. Learners will understand Whitney's embedding theorem, the role of dimension, and how to map abstract spaces into concrete environments.
Homotopy Groups
Homotopy groups classify topological spaces by studying the equivalence classes of continuous maps from spheres. Learners will understand how to compute fundamental and higher homotopy groups, analyzing the connectivity and topological holes of spaces.
Lie Groups
Lie groups are continuous symmetry groups that are also smooth manifolds. Learners will understand the relationship between continuous symmetries and algebraic structures, enabling them to analyze physical systems, differential equations, and geometric spaces.
Manifolds
Manifolds are topological spaces that locally resemble Euclidean space. Learners will understand how to define coordinates, compute derivatives, and study geometric properties on complex, curved shapes like spheres, tori, and spacetime.
Morse Theory
Morse theory analyzes the topology of a manifold by studying differentiable functions on it and their critical points. Learners will understand how to reconstruct manifolds using cell complexes and relate critical points to global topological invariants.
Smooth Maps
Smooth maps are infinitely differentiable functions between manifolds. Learners will understand how to analyze critical points, apply Sard's theorem, and use transversality to study the intersections and preimages of submanifolds.
Tangent Spaces
Tangent spaces generalize the concept of tangent planes to higher-dimensional manifolds. Learners will understand how to define directional derivatives, construct vector fields, and approximate non-linear geometric spaces locally using linear algebra.
Vector Bundles
Vector bundles associate a vector space to every point of a manifold, creating a unified geometric structure. Learners will understand how to analyze vector fields, define connections, and study topological invariants using characteristic classes.
