# Hokkaido Mathematical Journal

## Hokkaido Mathematical Journal, 41 (2012) pp.101-134

PDF

### Abstract

Using strong commuting self-adjoint operators in the Minkowski space, we showed that the operator concerning a neutral particle with an anomalous magnetic moment is related to that of a free particle by a non-unitary transformation.

MSC(Primary) 46L60 47B25, 47L60, 47N50, 81Q05, 81Q10 strongly commuting self-adjoint operators, Dirac operator, quantum field theory, external field problem, anomalous magnetic moment