Normed SpacesCovers normed spaces, dual spaces, Banach spaces, Hilbert spaces, weak and strong convergence, reflexive spaces, and the Hahn-Banach theorem.
Real Analytic FunctionsExplores real analytic functions, discussing their convergence and neighborhood properties in different contexts.
Function ApproximationsCovers continuous functions with compact support, density, and approximation, focusing on the heat equation.