摘要
UsingtheaveragingtheoryoffirstandsecondorderwestudythemaximumnumberoflimitcyclesofgeneralizedLinarddifferentialsystems{x=y+εhl1(x)+ε2hl2(x),y=-x-ε(fn1(x)y2p+1+gm1(x))+∈2(fn2(x)y2p+1+gm2(x)),whichbifurcatefromtheperiodicorbitsofthelinearcenterx=y,y=-x,whereεisasmallparameter.Thepolynomialshl1andhl2havedegreel;fn1andfn2havedegreen;andgm1,gm2havedegreem.p∈Nand[·]denotestheintegerpartfunction.
出版日期
2016年03月13日(中国期刊网平台首次上网日期,不代表论文的发表时间)