Almost primes in almost all short intervals II
: Matomäki Kaisa, Teräväinen Joni
Publisher: AMER MATHEMATICAL SOC
: 2023
: Transactions of the American Mathematical Society
: TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY
: T AM MATH SOC
: 376
: 8
: 5433
: 5459
: 27
: 0002-9947
: 1088-6850
DOI: https://doi.org/10.1090/tran/8869
: https://doi.org/10.1090/tran/8869
: https://research.utu.fi/converis/portal/detail/Publication/180246225
We show that, for almost all x, the interval (x, x + (log x)2.1] contains products of exactly two primes. This improves on a work of the second author that had 3.51 in place of 2.1. To obtain this improvement, we prove a new type II estimate. One of the new innovations is to use Heath-Brown's mean value theorem for sparse Dirichlet polynomials.