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Pointwise convergence of bilinear polynomial averages over the primes

Authors :
Krause, Ben
Mousavi, Hamed
Tao, Terence
Teräväinen, Joni
Publication Year :
2024

Abstract

We show that on a $\sigma$-finite measure preserving system $X = (X,\nu, T)$, the non-conventional ergodic averages $$ \mathbb{E}_{n \in [N]} \Lambda(n) f(T^n x) g(T^{P(n)} x)$$ converge pointwise almost everywhere for $f \in L^{p_1}(X)$, $g \in L^{p_2}(X)$, and $1/p_1 + 1/p_2 \leq 1$, where $P$ is a polynomial with integer coefficients of degree at least $2$. This had previously been established with the von Mangoldt weight $\Lambda$ replaced by the constant weight $1$ by the first and third authors with Mirek, and by the M\"obius weight $\mu$ by the fourth author. The proof is based on combining tools from both of these papers, together with several Gowers norm and polynomial averaging operator estimates on approximants to the von Mangoldt function of ''Cram\'er'' and ''Heath-Brown'' type.<br />Comment: 37 pages

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.2409.10510
Document Type :
Working Paper