Discrete cross-correlation function and GPR analyses of the γ-ray light curve. Top row: discrete cross-correlation function of γ-rays vs. 230 GHz (left) and 345 GHz (right) for 3C 84. The dashed red line corresponds to a double Gaussian fit of the DCF, the means of which (τ₁ and τ₂) are used as a more accurate estimate of the peak positions. The dashed gold curve again denotes the 99.7% confidence band. Middle row: curve for γ-ray emission in 3C 84. G1, G3, G4 (Hodgson et al. 2018), and G0, G5 denote the γ-ray flares considered in this work. Bottom row: Gaussian process regression curve for 230 GHz emission in 3C 84, matching the time range of the γ-rays. Y0, Y1, and Y34 denote the most prominent flares, which are possibly associated with the γ-ray ones.