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constant stretch 1correlated sampling 1covariance bounds 1effective resistance 1external-field measures 1hypersimplex 1

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math.PR2026

Effective Resistance in Fixed-Rank External-Field Measures and Constant-Stretch Correlated Sampling on the Hypersimplex

Tommaso Cesari, Roberto Colomboni

The paper establishes an effective‑resistance bound for random subsets drawn from a fixed‑rank external‑field measure, providing a factor‑two relaxation of a conjectured covariance…