Lie theory

ConceptFields of Mathematics
A branch of mathematics concerning Lie groups and Lie algebras.
1.25Uncommon

A branch of mathematics concerning Lie groups and Lie algebras.
Uncommon
Lie theory is a branch of mathematics initiated by Sophus Lie through studies of differential equations, automorphism groups and sphere contact. It includes the study of transformation groups, further developed by Wilhelm Killing and Élie Cartan. Its foundation is the Lie group–Lie algebra correspondence, expressed through the exponential map. Lie theory is part of differential geometry and is useful in mathematical physics for describing standard spacetime transformation groups.
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