Static scalar and electromagnetic test fields in а de Sitter space are studied. It is possiЫe to find solutions to equations for static conformally invariant fields without separation of variables. The complex vector potential is calculated bу using Debye potentials. From an expression for the time component of the vector potential the contribution made bу electromagnetic self-action to the force is estimated; the force of self-action is found to Ье equal to zero, with the electromagnetic contribution merely renormalizing the particle mass.
Department of Theoretical Physics
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