Almost primes and primes that are sums of two squares plus 1

Autorzy

Dane publikacji

  • DOI: 10.4064/aa250227-19-11

  • Tom 223

  • Zeszyt 1

  • Czasopismo: Acta Arithmetica

  • Strony: 51-82

  • Data publikacji online: 19.03.2026

Liczba wyświetleń: 0

Liczba pobrań: 0

Abstrakt

We obtain a lower bound for the number of primes $ p \leq x $ such that $ p - 1 $ is a sum of two squares and $ p + 2 $ has a bounded number of prime factors. The proof uses the vector sieve framework involving a semi-linear sieve and a linear sieve.