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math.PR2026
Community Detection on Block Models with Geometric Kernels
Konstantin Avrachenkov, B. R. Vinay Kumar, Lasse Leskelä
We consider the community recovery problem on a one-dimensional random geometric graph where every node has two independent labels: an observed location label and a hidden communit…
math.PR2025
Sharp constants relating the sub-Gaussian norm and the sub-Gaussian parameter
Lasse Leskelä, Matvei Zhukov
We determine the optimal constants in the classical inequalities relating the sub-Gaussian norm \(\|X\|_{Ï_2}\) and the sub-Gaussian parameter \(Ï_X\) for centered real-valued ra…