In studies of neutrino electromagnetic properties we discuss three very
interesting aspects related to neutrino spin oscillations. First we consider
neutrino mixing and oscillations in the mass and flavour bases under the
influence of a constant magnetic field with nonzero transversal and
longitudinal components. Then we discuss the effect of neutrino spin
oscillations induced by electroweak interactions of neutrino with moving matter
in case there is matter transversal current or polarization. In the final part
of the paper we discuss recently developed approach to description of neutrino
spin and spin-flavour oscillations in a constant magnetic field that is based
on the use of the exact neutrino stationary states in the magnetic field.Comment: 10 pages, the paper in the proceedings of the 19th International
Seminar on High Energy Physics QUARKS-2016 with minor modification
