Pontryagin product
= Pontryagin product
{wiki=Pontryagin_product}
The Pontryagin product is a way to define a multiplication operation on the cohomology ring of a topological group, specifically in the context of homotopy theory and algebraic topology. Named after the mathematician Lev Pontryagin, this product provides a rich algebraic structure that captures important information about the topological properties of the space.