Published November 20, 2025 | Version v2
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Spectral note: Paley gap via lambda_2 (residue circulants)

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Two-page note: definition of the residue-circulant Laplacian, FFT-based λ₂, Paley gap g(n)=|λ₂−(n−√n)/2|; empirical zeros at primes n≡1 (mod 4) up to 2601. Reproducible; not a primality proof.

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TNFR_spectral_paleygap.pdf

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