Concept

Fundamental class

Related lectures (4)

Explores cohomology and the cross product, demonstrating its application in group actions like conjugation.

Discusses the classification of surfaces and their fundamental groups using the Seifert-van Kampen theorem and polygonal presentations.

Explores simplicial and singular homology, reduced homology groups, and their connection to the fundamental group.

Introduces homology as a tool to distinguish spaces in all dimensions and provides insights into its construction and applications.