We prove that the absolutely continuous subspace of the completely non-selfadjoint part of a first-order dissipative Dirac-like system is trivial when the imaginary part of the potential is non-integrable.
Blair K. SpearmanDepartment of Mathematics and Statistics, University of British Columbia OkanaganKenneth S. WilliamsSchool of Mathematics and Statistics, Carleton University
We compute the$L$^{$p$}-cohomology spaces of some negatively curved manifolds. We deal with two cases: manifolds with finite volume and sufficiently pinched negative curvature, and conformally compact manifolds.