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20212026
most citedPeriodic Variable Stars Modulated by Time-Varying Parameters

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stat.ME2026

Decomposing the spectral density function of an ARMA process

Darlin Soto-Vásquez, Francisco Cuevas-Pacheco, Giovanni Motta +1

Quasi-periodic oscillations are characterized by fitting Lorentzian functions to a nonparametric estimate of the power spectral density, a two-step procedure that separates estimat…