Groupoid algebra


In mathematics, the concept of groupoid algebra generalizes the notion of group algebra.

Definition

Given a groupoid and a field, it is possible to define the groupoid algebra as the algebra over formed by the vector space having the elements of as generators and having the multiplication of these elements defined by, whenever this product is defined, and otherwise. The product is then extended by linearity.

Examples

Some examples of groupoid algebras are the following: