Classification of generic quantum-group category deformations

Classify the pivotal infinitesimal deformations of quantum-group categories at generic quantum parameter, for example by computing their Davydov–Yetter cohomology.

Background

The paper classifies infinitesimal deformations of the quantum G2G_2 category and of the ribbon category associated with Deligne’s StS_t. It notes that a broader classification for quantum-group categories at generic quantum parameter is not currently available in the literature. The authors indicate that computing Davydov–Yetter cohomology may provide a route to resolving this problem, but they do not carry out that analysis in the paper.

References

Although deformations of quantum group categories at generic $q$ have not been classified in the literature, according to Pavel Etingof and ChatGPT, it should be within reach to classify such deformations by computing their Davydov-Yetter cohomology. We do not pursue either of these directions further in the current paper.

Skein theory and deformations  (2609.19329 - Snyder et al., 16 Sep 2026) in Section 1, Introduction