机译:When an oscillating center in an open system undergoes power law decay
SN Bose Natl Ctr Basic Sci, Block JD,Sect 3, Kolkata 700106, India;
Krylov-Boguliubov(K-B) method; Lienard-Levinson-Smith(LLS) system; Power-law decay; Isochronous oscillator; Multiscale perturbation theory; Limit cycle; Delay model;