2023/09/07 by Li, Runbo
#FOS: Mathematics #Number Theory (math.NT)
paper · doi:10.48550/arxiv.2309.03218
For two relatively prime square-free positive integers a and b, we study integers of the form a p+b P2 and give a new lower bound for the number of such representations, where a p and b P2 are both square-free, p denote a prime, and P2 has at most two prime factors. We also consider some special cases where p is small, p and P2 are within short intervals, p and P2 are within arithmetical progressions and a Goldbach-type upper bound result. Our new results generalize and improve previous results.