Lectures related to Disjoint union (topology)

Explores the concept of a wedge of spaces and explicit parainization.

Introduces CW complexes and demonstrates their normality and Hausdorff property by constructing open neighborhoods for cells.

Explores the properties of the quotient space X/G when X is compact and sometimes separated.

Covers proper actions of groups on Riemann surfaces and introduces algebraic curves via square roots.

Covers the topology of Riemann surfaces and the concept of triangulation using finitely many triangles.

Introduces essential properties of Cartesian products and disjoint unions in the theory of groups and categories.

Explains the Open Mapping Theorem for holomorphic maps between Riemann surfaces.