 Products in algebraic topology

In algebraic topology, the concept of "products" generally refers to ways of combining topological spaces or algebraic structures (such as groups or simplicial complexes) to derive new spaces or groups. There are several key notions of products that are important in this field: 1. **Product of Topological Spaces**: Given two topological spaces \( X \) and \( Y \), their product is defined as the Cartesian product \( X \times Y \) together with the product topology.