Two averaged dynamical generalizations of Chowla's conjecture

Abstract

Let $k\ge 1$ be an integer and let $\lambda$ be the Liouville function. In 1965, Chowla gave a conjecture that the values of $\lambda (n+h_1),\dots ,\lambda (n+h_k)$ are asymptotically unrelated for any distinct natural numbers $h_1,\dots ,h_k$. In this article, motivated by the recent work of Bergelson and Richter on the dynamical generalizations of the prime number theorem, we will show a dynamical generalization of Chowla's conjecture on average. In the proof, we follow an approach of Qi and Zheng who established a variant of Bergelson and Richter's theorem over irreducible binary cubic forms. Moreover, we will use this approach to show an analogue of the dynamical Chowla's conjecture along the primes on average. In 2016, Tao proved that the two-point logarithmic Chowla's conjecture holds. Recently, Charamaras and Richter generalized Tao's theorem to bounded arithmetic functions and proposed a conjecture that generalizes Chowla's conjecture to bounded multi-variable arithmetic functions. In the end of this article, we will show an averaged form of this conjecture and a dynamical generalization of Tao's theorem.

21 pages, title was changed and Theorems 1.6-1.9 were added