Authors: Rafael de Freitas Leão
Publish Date: 2014/12/31
Volume: 25, Issue: 3, Pages: 569-575
Abstract
It is known that for Dirac operators on Riemann surfaces twisted by line bundles with HermitianEinstein connections it is possible to obtain estimates for the first eigenvalue in terms of the topology of the twisting bundle 8 Attempts to generalize topological estimates for higher rank bundles or higher dimensional manifolds have been so far unsuccessful In this work we construct a class of examples making explicit one problem that must be addressed in attempts to generalize such topological estimates
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