摘要
本文证明了Duffing方程x+arctan x=p(t)的调和解和无穷多的次调和解的存在 性,其中周期的2π连续函数p(t)满足|p(t)|<π/2,(?)t∈R.
In the paper, we will prove the existence of harmonic solution and infinitely many subharmonic solutions for Duffing equationx + arctan x = p(t), where continuous 2π-periodic function p(t) satisfies
出处
《数学进展》
CSCD
北大核心
2003年第1期39-46,共8页
Advances in Mathematics（China）
