Deformation theory of the \((C_n^\vee,C_n)\)-DAHA
Preprint, 2026.
We provide a zeros-and-residues realizations of the double affine Hecke algebra associated with the non-reduced affine root system of type \((C_n^\vee,C_n)\). We also show it is the universal deformation of a crossed product algebra of a quantum torus and finite Weyl group. arXiv