1. Khovanov, Mikhail: Hopfological algebra and categorification at a root of unity: the first steps. J. Knot Theory Ramifications 25 (2016), no. 3, 1640006, 26 pp.

Published version (JKTR)

arXiv

2. Khovanov, Mikhail and Qi, You: An approach to categorification of some small quantum groups. Quantum Topol. 6 (2015), no. 2, 185-311.

Published version (QT)

arXiv

3. Qi, You: Hopfological algebra. Columbia University; PhD Thesis (2013).

Thesis

(smaller) Published version (Compositio Math.)