# § 2. Topology and harmonic analysis.

###### Contents

- §2.1 Basic concepts.
- §2.2 Functional analysis and topology.
- §2.3 Point symmetry.
- §2.4 Some 2-manifolds, deck transformations.
- §2.5 Spherical 3-manifolds.
- §2.6 From homotopy to deck transformations for the cubic spherical manifolds.
- §2.7 Deck transformation groups for spherical 3-manifolds.
- §2.8 Functional analysis on spherical 3-manifolds.