In mathematics, a double affine braid group is a group containing the braid group of an affine Weyl group. Their group rings have quotients called double affine Hecke algebras in the same way that the group rings of affine braid groups have quotients that are affine Hecke algebras.
For affine An groups, the double affine braid group is the fundamental group of the space of n distinct points on a 2-dimensional torus.
References
- Haiman, Mark (2006). "Cherednik algebras, Macdonald polynomials and combinatorics". International Congress of Mathematicians. Vol. 3. Eur. Math. Soc., Zürich. pp. 843–872. ISBN 978-3-03719-022-7. MR 2275709. Archived from the original on 2011-08-20. Retrieved 2011-06-09.
- Macdonald, I. G. (2003). Affine Hecke Algebras and Orthogonal Polynomials. Cambridge University Press. ISBN 0-521-82472-9. MR 1976581.
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