Lecture
This lecture covers the study of projective varieties, which are the algebraic analogues of compact manifolds. The instructor explains the concept of irreducible sets in projective varieties and their relation to compact manifolds. The lecture delves into the algebraic level, discussing equations and lines in projective spaces. The instructor demonstrates how projective varieties are easier to study compared to compact manifolds. The lecture concludes with a discussion on closure properties and symmetric aspects of projective varieties.