The lifting conjecture for exact equivariant Morita classes
The lifting conjecture for exact equivariant Morita classes
Let be a finite-dimensional Hopf algebra with the dual Chevalley property, let be its coradical, and let be a complete set of exact -equivariant Morita equivalence class representatives. Then define
Lifting conjecture. The set is a complete set of exact -equivariant Morita equivalence class representatives.
This conjecture proposes that exact equivariant Morita equivalence classes for a finite-dimensional Hopf algebra with the dual Chevalley property can be classified by lifting representatives from the coradical. It is motivated by the lifting method and computations for pointed Hopf algebras with cyclic coradical; the supplied source gives no resolution.
Sources & referencesView supporting material
Primary source
Jacob Van Grinsven, “H-Equivariant Morita equivalences of Loewy-graded comodule algebras”, arXiv:2510.09540 (2025).
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