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arXiv · 2510.20648

Mixed motives and linear forms in the Catalan constant

Payman Eskandari·Kumar Murty·Yusuke Nemoto
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Abstract

We first give a geometric construction of a 2-dimensional mixed motive over $\mathbb{Q}$ with the Catalan constant $\mathbf{G}=1-1/3^2+1/5^2-1/7^2+\cdots$ as a period. We then use this motive to obtain a supply of linear forms in 1 and $\mathbf{G}$. We also explicitly compute the coefficients of 1 and $\mathbf{G}$ in these linear forms.

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Payman Eskandari, Kumar Murty, Yusuke Nemoto. 2025-10-23. Mixed motives and linear forms in the Catalan constant. https://arxiv.org/abs/2510.20648

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