%0 Journal Article
%T A Remark on Letzter-Makar-Limanov Invariants
%A Yuri Berest
%J Mathematics
%D 2003
%I arXiv
%X We give a natural cohomological interpretation of Letzter-Makar-Limanov invariants for rings of differential operators on algebraic curves.
%U http://arxiv.org/abs/math/0304154v1