Lectures related to Cell Attachment and Homotopy

Covers commutative diagrams, homotopy, and constructing topological spaces.

Covers the Seifert van Kampen theorem, homotopy, and the repair of premie rectangles.

Covers induced homomorphisms on relative homology groups and their properties.

Delves into disk deprivation in topology, showcasing how spaces emerge from this process.

Covers the fundamentals of homotopy and its applications in topology.

Covers homotopy, quotient spaces, and the universal property in topology.

Explores fundamental groups, homotopy classes, and coverings in connected manifolds.

Covers the elementary properties of model categories, emphasizing the duality between fibrations and cofibrations.

Explores the cellular approximation theorem for CW complexes and its implications on homotopy groups.

Explores the cylinder construction on a chain complex and its equivalence to chain homotopy.