Admissible Frontier Saturation and the Cascade Exponent: A Representation-Theoretic Obstruction and its Matrix-Level Refinement
representation-theory spectral-admissibility mass-hierarchy kesten-mckay-measure cascade-exponent admissible-frontier lps-ramanujan-graphs steinberg-representation psl-2-f-q
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Updated
Jul 18, 2026 - TeX