A Bound for Prime Solutions of Some Ternary Equations.
Let be the floor function. In this paper, we prove by asymptotic formula that when , then every sufficiently large positive integer can be represented in the form where , , , , are primes such that .
Given A and B integers relatively prime, we prove that almost all integers n in an interval of the form [N, N+H], where N exp(1/3+e) ≤ H ≤ N can be written as a sum Ap1 + Bp2 = n, with p1 and p2 primes and e an arbitrary positive constant. This generalizes the results of Perelli et al. (1985) established in the classical case A=B=1 (Goldbach's problem).