most recent 30 from http://mathoverflow.net 2013-06-19T15:46:15Z http://mathoverflow.net/feeds/user/10892 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/46346/semisimple-orbifold-quantum-cohomology Cat 2010-11-17T11:54:26Z 2010-11-17T11:54:26Z

<p>Dubrovin conjecture says, roughly speaking, that the quantum cohomology of a variety $X$ is semisimple if and only if it is a good Fano [good means that there exits a full exceptional collection in the bounded derived category of coherent sheaves of $X$] If we consider not a variety but an orbifold $Y$ and orbifold quantum cohomology, Does there exist any criteria in order to determine whether the orbifold quantum cohomology of $Y$ is semisimple?</p>