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counterexamples 1distance spectra 1graph theory 1linear programming 1regular graphs 1spectral graph theory 1

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math.CO2026

Counterexamples, Spectral Obstructions, and Deletion Stability for WOW-284

Samuil Petkov

The paper disproves the WOW‑284 conjecture by presenting exact counterexample graphs of orders 38, 39, 40, 42, and 50, and develops a structural theory describing the failure, incl…