 Double affine braid group

The double affine braid group is an algebraic structure that arises in the study of braid groups in the context of affine Lie algebras and their representations. More specifically, it is an extension of the classical braid groups introduced by Emil Artin, with additional features that incorporate affine symmetry. ### Definition and Structure The double affine braid group \( \widetilde{B}_n \) can be seen as a generalization of the affine braid group.