ELI5: Explain Like I'm 5

Lie algebra

Lie algebra is a type of mathematics which studies the structure of groups. It looks at how the elements of a group are related to one another, and how they can be combined to create new elements. Lie algebra is used to study the geometry of curves and surfaces in space, as well as algebraic equations and other types of mathematical tools. It can also help to understand physical processes, such as the way particles interact.