3 problems

Let $F$ be a field of characteristic $0$, let $H$ be a Hopf algebra over $F$, and let $A$ be a finite-dimensional associative $H$-module algebra, with codimensions … where $P_n^H$…

Let $C$ be an $H$-module coalgebra and let $A$ be an $H$-module algebra, with Hopf-cyclic cohomology defined using suitable coefficients. General Hopf-cyclic pairing conjecture. Th…

Berenstein–Kazhdan's conjecture. These assignments turn ${\mathcal L}_I$ into an ${\bf H}(W)$-module algebra.