Iván Angiono, Mikhail Kochetov, Mitja Mastnak
We study deformations of graded braided bialgebras using cohomological methods. In particular, we show that many examples of Nichols algebras, including the finite-dimensional ones arising in the Andruskiewitsch–Schneider program of classification of pointed Hopf algebras, are rigid. This result can be regarded as nonexistence of “braided Lie algebras” with nontrivial bracket.
© 2001-2024 Fundación Dialnet · Todos los derechos reservados