2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/76117Extending a method of D. Wolke, we establish a general result on the large sieve with sparse sets S of moduli which are in a sense well-distributed in arithmetic progressions. We then apply our result to the case when S consists of sqares. In this case we obtain an estimate which improves a recent result by L. Zhao.Number Theory11N35, 11L07The large sieve with sparse sets of modulitext