A.A. Abramov, A. Aslanyan and E.B. Davies
Bounds on complex eigenvalues and resonances
(528K, Postscript)

ABSTRACT.  We obtain bounds on the complex eigenvalues of 
non-self-adjoint Schr\"odinger operators with complex 
potentials, and also on the complex resonances of 
self-adjoint Schr\"odinger operators. Our bounds are 
compared with numerical results, and are 
seen to provide useful information.