Do periods of decayless kink oscillations of solar coronal loops depend on noise?

Decayless kink oscillations of solar coronal loops are studied in terms a low-dimensional model based on randomly driven Rayleigh oscillator with coefficients experiencing random fluctuations. The considers as natural modes loops, decaying by linear resonant absorption. damping is counteracted motions the loop footpoints and interaction external quasi-steady flows In other words, combines self-oscillatory mechanisms for decayless behaviour. signals taken to be stationary red noise nature. noiseless case, has an asymptotically oscillatory solution, i.e., self-oscillation. It established that oscillation period practically independent noise. This finding justifies seismological estimations Alfv\'en speeds magnetic field oscillating oscillations, observed period. patterns found almost harmonic. Noisy fluctuations modulate amplitude monochromatic pattern symmetrically, while cause antisymmetric modulation. Such modulations also consistent