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General relations between parameters defining angular distribution and spin polarization of Auger (autoionization) electrons

General relations between dynamical parameters describing the spin polarization and the angular distribution of Auger or autoionization electrons emitted from atoms have been established. They are derived on the basis of known properties of the angular momentum coupling coefficients, therefore they are exact and independent of the decay dynamics. All similar relations previously found for certain Auger transitions as well as for photoionization follow, as particular cases, from the general ones.