Source: wikibot/orbital-integral
= Orbital integral
{wiki=Orbital_integral}
An **orbital integral** is a concept primarily used in the fields of representation theory and harmonic analysis on groups, especially in the context of Lie groups and algebraic groups. It typically arises in the study of automorphic forms and the trace formula. In general, an orbital integral can be thought of as a tool for integrating a certain class of functions over orbits of a group action.