Concept

Boundary (topology)

Related lectures (25)

Covers open and closed sets, adhesion, and convergence in sets.

Focuses on lifting properties in homotopy theory of chain complexes.

Explains the Bolzano-Weierstrass Theorem, stating that every bounded sequence has a convergent subsequence.

Explores examples of simplicial homology by equipping known topological spaces with delta complex structures.

Covers the concept of simplices in delta complexes and explains the standard n-simplex and the ordering of vertices.