Resolvent estimates and spectrum of the Dirac operator with periodic potential

Some estimates are given of the norm of the resolvent of the Dirac operator on ann-dimensional torus (n 2) for complex values of the quasimomentum. It is shown that the spectrum of the periodic Dirac operator with potential , >3, is absolutely continuous.Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 103, No. 1, pp. 3–22, April, 1995.