Principal bundle

A **principal bundle** is a mathematical structure used extensively in geometry and topology, particularly in the fields of differential geometry, algebraic topology, and theoretical physics. It provides a formal framework to study spaces that have certain symmetry properties. Here are the key components and concepts related to principal bundles: ### Components of a Principal Bundle 1. **Base Space (M)**: This is the manifold (or topological space) that serves as the "base" for the bundle.