Marcinkiewicz-type interpolation theorem for Morrey-type spaces and its corollaries to obtaining an analogue of O'
Neil's inequality for convolutions and to proving the boundedness
Integral properties of generalized Bessel potentials rearrangements obtained by O'
Neil. The results are concretized and the rearrangement invariant hull
ESTIMATES FOR DECREASING REARRANGEMENTS OF CONVOLUTION AND COVERINGS OF CONES the exactness of some corollaries of O’
Neil’s upper estimates for convolutions. The results are applied