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arXiv · 2411.07932

Inhomogeneous Khintchine-Groshev theorem without monotonicity

Seongmin Kim
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Abstract

The Khintchine-Groshev theorem in Diophantine approximation theory says that there is a dichotomy of the Lebesgue measure of sets of $\psi$-approximable numbers, given a monotonic function $\psi$. Allen and Ram\'irez removed the monotonicity condition from the inhomogeneous Khintchine-Groshev theorem for cases with $nm\geq3$ and conjectured that it also holds for $nm=2$. In this paper, we prove this conjecture in the case of $(n,m)=(2,1)$. We also prove it for the case of $(n,m)=(1,2)$ with a rational inhomogeneous parameter.

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Seongmin Kim. 2024-11-12. Inhomogeneous Khintchine-Groshev theorem without monotonicity. https://arxiv.org/abs/2411.07932

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