Topology I
Semester I (PS01CMTH52)
Semester I (PS01CMTH52)
Unit-I | Topological spaces, basis, subbasis, the product topology on $X \times Y$, the subspace topology, closed sets, closure and interior, limit points, boundary of a set. |
Unit-II | Hausdorff spaces, convergent sequence, $T_1$-space, Continuous functions, homeomorphisms, constructing continuous functions, pasting lemma, metric topology, diameter and bounded sets, bounded metric $\overline{d}$ (excluding norm), continuity in metrizable spaces, the sequence lemma, first countability axiom. |
Unit-III | Connected spaces, connected subspaces of the real line, connected components, compact spaces, finite intersection property, Heine-Borel theorem for real line, second countable spaces, separable spaces. |
Unit-IV | Regular spaces, Normal spaces, Urysohn’s Lemma (statement only), Tietze’s Extension Theorem (statement only), Complete metric spaces, Cantor’s intersection theorem, Baire’s category theorem for complete metric spaces. |