The extremal landscape for the C$\beta $E ensemble
Forum of Mathematics, Sigma, Tome 13 (2025) no. 1, p. e1

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We consider the extremes of the logarithm of the characteristic polynomial of matrices from the C$\beta $E ensemble. We prove convergence in distribution of the centered maxima (of the real and imaginary parts) toward the sum of a Gumbel variable and another independent variable, which we characterize as the total mass of a ‘derivative martingale’. We also provide a description of the landscape near extrema points.
Paquette, Elliot; Zeitouni, Ofer. The extremal landscape for the C$\beta $E ensemble. Forum of Mathematics, Sigma, Tome 13 (2025) no. 1, p. e1. doi: 10.1017/fms.2024.129
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