On Waring's problem in sums of three cubes
arXiv:2010.14536
Abstract
We investigate the asymptotic formula for the number of representations of a large positive integer as a sum of -th powers of integers represented as the sums of three positive cubes, counted with multiplicities. We also obtain a lower bound for the number of representations when the sums of three cubes are counted without multiplicities.
21 pages, minor linguistic modifications, to appear in Mathematika