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Nonexistence of $L^\alpha$ -flat Erdős–Littlewood polynomials below exponent four
Nonexistence conjecture. There are no $L^\alpha$ -flat polynomials in the class of Erdős–Littlewood polynomials for any $\alpha<4$ .
Conjectureopenerdos-littlewood-polynomials flat-polynomials harmonic-analysisarXiv posted 2 days ago

Nonexistence of LαL^\alphaLα-flat Erdős–Littlewood polynomials below exponent four