homeomorphism theory同胚理论
differential homeomorphism微分同胚
almost homeomorphism几乎同胚
transfer homeomorphism转移同胚
cr homeomorphismcr同胚
fuzzy homeomorphismFuzzy同胚
local homeomorphism局部同胚
unstable homeomorphism[数] 不稳定同胚
minimal homeomorphism[数] 极小同胚
Thirdly, we consider the n-dimensional Duffing type equation with damping term. By virtue of homeomorphism, extension and fixed point method, we discuss the existence of periodic solution under the nonresonance condition.
再次，我们考虑n维的带有阻尼项的Duffing型方程，运用同胚延拓及不动点方法，讨论了非共振条件下周期解的存在性问题。
参考来源 - Liénard方程和非共振Duffing方程研究N（名词） the property, shown by certain chemical compounds, of having the same crystal form but different chemical composition 同胚