Banach Spaces of Functions Delta-Subharmonic in the Unit Disc

In this chapter we introduce some Banach spaces of delta-subharmonic in \(\mathbb D\) functions, the M.M. Djrbashian generalized fractional integrals of which possess bounded square integral means. The union of the considered spaces coincides with the set of all functions delta-subharmonic in the unit disc. We use the following class of functional parameters.