Lectures related to Theory of Time-Independent Perturbation: Part 3

Explores the arithmetic of direct sum of abelian groups and the process of turning a monoid into a commutative group.

Covers generalized integrals, focusing on convergence conditions and examples.

Explores the concept of category theory, providing examples and discussing the opposite category concept.

Delves into Fourier series theory, computation, and comparison with functions using the Dirichlet theorem.

Covers exact sequences, torsion, divisibility, and operations on abelian groups.

Covers the definition of generators of the conformal group and the application of Wick's theorem.