Covariant q-Differential Calculus and its Deformations at q^N=1

Covariant q-differential operators and unitary highest weight representations for U_q su(n,n)

Covariant Realization of Quantum Spaces as Star Products by Drinfeld Twists

Covariant Strong Morita Theory of Star Product Algebras

Covering Algebras II: Isomorphism of Loop Algebras

Covering AlgebrasI: Extended Affine Lie Algebras

Covering and gluing of algebras and differential algebras

Coxeter Complexes and Graph-Associahedra

Creation operators and algebraic Bethe ansatz for the elliptic quantum group $E_{τ,η}(so_3)$

Creation operators for the Macdonald and Jack polynomials

Cremmer-Gervais r-matrices and the Cherednik Algebras of type GL2

Critical points of functions, sl_2 representations, and Fuchsian differential equations with only univalued solutions

Critical points of master functions and flag varieties

Cross Product Bialgebras - Part I

Cross Product Bialgebras - Part II

Crossed modules and quantum groups in braided categories

Crossed pointed categories and their equivariantizations

Crossed product of Hopf algebras

Crossed product tensor categories

Crossed products and cleft extensions for coquasi-Hopf algebras