Author

H. Tavakoli

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Preprint Aug 2026

Chi-Squared Geometry for Robust Finite-Blocklength Information and Dispersion Analysis

We develop a column-wise chi-squared geometry for discrete memoryless channels (DMCs) yielding tight, logarithm-free bounds on mutual information, channel dispersion, and finite-blocklength coding rates without evaluating logarithms of the channel matrix. The key parameter is~\(\eta\)---the worst-case relative deviatio...

H. Tavakoli, Thinh Nguyen, Bella Bose · 0 citations