%0 Journal Article %T An analogue of the Sommerfeld radiation condition for the Dirac operator %A Vladislav V. Kravchenko %A Raul Castillo P %J Physics %D 2000 %I arXiv %R 10.1002/mma.377 %X A simple radiation condition at infinity for time-harmonic massive Dirac spinors is proposed. This condition allows an analogue of the Cauchy integral formula in unbounded domains for null-solutions of the Dirac equation to be proved. The result is obtained with the aid of methods of quaternionic analysis. %U http://arxiv.org/abs/math-ph/0008042v1