1) ω~-continuous semigroup
弱连续半群
2) weak~* continuous operator semigroups
弱*连续算子半群
1.
Weak~* continuous operator semigroup and its infinitisimal generator are introduced on the dual of a normed space;Some relevant properties of weak~* continuous operator semigroups are given;Using generator,Weak~* continuous operator semigroups are characterized;Furthermore,the generating theorem of a Weak~* continuous operator semigroup is also obtained.
在线性赋范空间的对偶空间上引入了弱*连续算子半群及其生成元的概念,给出了弱*连续算子半群的一些性质,通过生成元及其有关性质对弱*连续算子半群进行了系列刻画,并给出了一类弱*连续算子半群的生成定理。
3) weakly semicontinuity
弱半连续
5) upper weak continuity
上半弱连续
1.
In this paper,we gave some results of upper weak continuity of multifunctions and discussed the relation between upper weak continuity and upper star quasicontinuity of multifunction
本文将其结果推广到上半弱连续集值映射上,将[2]中的某些结果的连续条件减弱为上半弱连续,并讨论了上半弱连续性与上半拟连续性[3]之间的关系。
6) weak lower semicontinuous
弱下半连续
1.
economies with finitely or countable infinitely dimensional noncompact strategy spaces and prove the existence of equilibria with the assumption that preference correspondences confined by constraint correspondences are weak lower semicontinuous or 2-lower semicontinuous.
文章进一步研究了这样的抽象经济 ,它具有有限或无限维的非紧的策略空间 ,被约束对应限制下的偏好对应在弱下半连续或 2—下半连续的假设下 ,证明了抽象经济均衡的存在 。
补充资料:强连续半群
强连续半群
strongly-continuous son!-group
强连续半群[s枷叼y一c佣“nu0lls,”‘.9代阅.;c翻‘即“enpep曰.Ha,no月yrPynna] Banach空间X上具有以下性质的一族有界线性算子T(t),r>0: l)T(t+;)x=T(r)T(:)x,r,了>0,x6X; 2)函数tl~T(t)x对任何x〔X在(O,的)上连续. 当1)成立时,所有函数tl一T(t)x(x‘X)的可测性,且特别地它们的单边(右或左)弱连续性,蕴涵T(t)的强连续性.对一个强连续半群,有限数 田一r叹r一’]n 11T(‘)1卜,纯‘一’In llT(r)11称为该半群的型(勿详of the semi一gouP).这样,函数t卜,T(t)x的范数在的的增长不快于指数e‘『.强连续半群的分类是基于当t,O时它们的性态.如果有一个有界算子J使得当t一,O时}T(t)一川},O,则J是一个投影算子且T(t)=Je‘月,其中A是与J交换的一个有界线性算子.在这情形T(t)关于算子范数是连续的.如果J=I,则T(t)=c‘滩,一的
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