Abstract:Shapiro and Warga (2) have proved in an elementary way that all large integers are expressible as the sum of at most 20 primes. In so doing, they proved that as x —> ∞, where u is a positive square...Shapiro and Warga (2) have proved in an elementary way that all large integers are expressible as the sum of at most 20 primes. In so doing, they proved that as x —> ∞, where u is a positive square-free integer,Read More
Abstract: Shapiro and Warga (2) have proved in an elementary way that all large integers are expressible as the sum of at most 20 primes. In so doing, they proved that as x —> ∞, where u is a positive square-free integer,