Extending differential forms and the Lipman-Zariski conjecture

Extending differential forms and the Lipman-Zariski conjecture - Sándor Kovács

Sándor Kovács
University of Washington; Member, School of Mathematics
October 22, 2014
The Lipman-Zariski conjecture states that if the tangent sheaf of a complex variety is locally free then the variety is smooth. In joint work with Patrick Graf we prove that this holds whenever an extension theorem for differential 1-forms holds, in particular if the variety in question has log canonical singularities.