It is proved that Poisson-stable points are dense in the locally compact phase space X if and only if non-wandering points are dense in the X.
证明了如果相空间X局部紧,则Poisson稳定点在X中稠与非游荡点在X中稠等价。
This article discusses a few important point sets: wandering point set,non-wandering point set and recurrence point set in a topological dynamical system,obtains the equivalence definitions and proofs of wandering point set and non-wandering point set,as well as the equivalence and its proof of several point set.
对拓扑动力系统中几个重要点集——游荡点集、非游荡点集和回归点集进行讨论,得到游荡点集和非游荡点集的几个等价定义,以及几个点集的等价性及其证明。
By introducing the general notion of nonwandering operator semigroup T(t) and utilizing a basic result in normed linear space,the nonwandering property of T(t)=e~(tA) is investigated with the constructive method.
通过给出一般算子半群T(t)的非游荡性概念,利用赋范空间的一个基本结果和直接的构造法证明了具有变系数的线性发展方程的强连续解半群T(t)=etA在适当的条件下是非游荡的;另外,通过对C-半群T(t)概念的引进,定义了一个无界算子半群etA,进一步证明了这二者关于非游荡性的联系;最后给出了一个无界算子半群etP(B)关于非游荡性理论的刻画,其中P(B)是微分多项式。
When it was time for his appointment he drifted uptown to the club entrance.
快到约会的时间，他游游荡荡地向夜总会的大门走去。
Wandered about, guided only by will.
四处游荡，随心所欲
Where have you been footling around?
你游荡到哪儿去了？
She gads about Europe a lot.
她在欧洲到处游荡。
He drifts about doing nothing
他到处游荡，什么也不干。
someone who strays or falls behind.
游荡或落在后面的人。
Nonwandering Operator in Infinite Dimensional Separable Fréchet Space;
Fréchet空间上的非游荡算子
One who bums, especially for a living.
懒汉，游手好闲的人游荡者，尤指为生活而游荡的人
They attended the rally and reviewed the mighty army of paraders.
他们参加了大会，检阅了浩浩荡荡的游行大军。
To roam about in search of pleasure or amusement.
游荡，游乐为了找寻快乐或娱乐而闲逛、漫游
One who roams or roves about, as in search of amusement or social activity.
游荡者如为寻欢作乐或参加社会活动而四处游荡的人
"One, especially a robber or prostitute, who walks the streets at night."
夜间游荡的人夜间在街上游荡的人，尤指拦路抢劫者或妓女
young people adrift in our big cities
在我们大城市里四处游荡的年轻人
drunks arrested for vagrancy
因游荡罪遭逮捕的喝醉的人.
She spent the summer swanning around Europe.
她在欧洲游荡了一个夏天。
I was not fond of any more country rambles.
我不打算再到乡间去游荡了。
There are still herds of wild mustangs roaming free.
还有成群的野马在自由地游荡。
Prowled the alleys of the city after dark.
天黑后在城市的巷子里游荡