Daniel BulacuDaniel Bulacu is Professor in the Faculty of Mathematics and Computer Science at Universitatea din Bucureşti, Romania. His research interests include graded rings and modules, Hopf algebras and generalizations, (braided) monoidal categories, braid grups, Clifford algebras, Cayley–Dickson algebras, (co)Frobenius (co)algebras, (co)wreaths and derived (co)wreath (co)algebra structures, and Hopf Galois theory. He received the 2009 'Dimitrie Pompeiu' prize from the Romanian Academy. Read More Read Less