1) locally finite
局部有限
1.
The notion of base-countably paracompact space is introduced and some of its equivalent characterizations are obtained:(i)X is a base-countably paracompact space if there exsists an open basis B for X with |B|=ω(X) such that every countably open cover U={Ui}i∈N of X has a locally finite countabe refinement B′ by members of B,B′={Bi}i∈N and BiUi.
引入了基-可数仿紧空间的概念,给出基-可数仿紧空间的一些等价刻画,获得以下结果:(i)X是基-可数仿紧空间当且仅当存在X的一开基B,|B|=ω(X),对于X的每一可数开覆盖U={Ui}i∈N,都存在B′B,使得B′={Bi}i∈N是U的局部有限的可数开加细,且BiUi;(ii)设X是正规空间,X是基-可数仿紧空间当且仅当存在的一开基B,|B|=ω(X),使得X的每一可数开覆盖都存在由B中的元构成的局部有限的收缩。
2.
Author mainly proves following:(1)X is a Base-paracompact space iff X is a Base-countably paracompact space and every open cover of X has a σ-locally finite open refinement by members of the basis which witnesses Base-countably paracompact space.
主要证明了如下结果:(1)X是基-仿紧空间当且仅当X是基-可数仿紧空间,并且X的每一开覆盖都存在满足X是基-可数仿紧空间的开基的元构成的σ-局部有限的开加细。
3.
In [4], the authors have proved that if a locally finite group is a core-finite, then it .
文[4]证明了局部有限的Core-有限群是abelian-by-finite。
2) finite local
有限局部环
1.
Let R=Z/pk Z is a finite local ring of module integer pk,Let D i=O Di - Di O ,Δ ={Pi∈ GL2 si ( R) | Pi D i Pi′- D i=B},and matrix B=pμBis a arbitrary alternate matrix with order2 siover R,where p is a prime and k>1 ,Di=diag{pri,… ,pri},0 <ri<k,ri<μ≤ k,si≥ 1 .
设 R=Z/pk Z是模整数 pk的有限局部环 ,Di=O Di-Di O ,B=pμB是 R上任意取定的 2 si阶交错阵 ,Δ={Pi∈ GL2 si( R) |Pi Di Pi′-Di=B},其中 Di=diag{pri,… ,pri},0
3) locally finite group
局部有限群
1.
The following results have been given: let R be a ring and G be a locally finite group,if the group ring RG is a left G-morphic ring,then R is a left G-morphic ring;if the group ring RH is a left G-morphic ring for every finite subgroup H of G,then the group ring RG is a left G-morphic ring.
本文讨论了左G-morphic群环RG的性质,主要证明了以下结果:设R是一个环,G是一个局部有限群,如果群环RG是左G-morphic环,那么R是左G-morphic环;如果对G的每个有限子群H,群环RH是左G-morphic环,那么群环RG是左G-morphic环。
2.
For every subgroup H of a locally finite group G, if H is a weakly semi-radicable group and H ≠ Hp for every p∈ π(H), then G is a locally nilpotent group and every Sylow p-subgroup of G is finite.
证明了:①如果局部有限群G的每一个子群H是弱半根群且对任意p∈π(H)满足H≠Hp,那么G是局部幂零群而且每一个Sylow p-子群是有限群。
4) finite local ring
有限局部环
1.
Taking the set of all 3×3 alternate matrices over finite local ring Z/pmZ as the set of treatments.
利用有限局部环Z/pmZ上的全体3×3矩阵作为处理的集合,构作了有m个结合类的结合方案,并且计算出其参数。
2.
Let H be a 3×3 alternate matrices over finite local ring Z/pmZ.
设H是有限局部环Z/pmZ上的3×3交错矩阵,通过确定H的标准形,计算出有限局部环Z/pmZ上合同标准形的3×3交错矩阵的个数nk,其中当0≤k
3.
Nan jizhu takes the set of all 2× 2 alternate matrices over finite local ring as the set of treatments and obtains an association scheme with m associate classes,whose parameters are also computed.
南基洙利用有限局部环上的2阶交错矩阵构作了多个结合类的结合方案,并计算了参数。
5) strong locally finite family
强局部有限
6) locally finite rings
局部有限环
1.
It is proved that finite normalizing extensions of locally finite rings are locally finite rings,and it is proved that equivalence conditions of skew semigroup rings R*_θS are locally finite rings.
文中证明了局部有限环上的有限正规扩张是局部有限环,以及斜半群环R θS是局部有限环的等价条件。
补充资料：局部有限群
局部有限群
locally finite group
局部有限群【】叨uy五‘teg心甲;.Ka月研。幼邢，翻rPynna] 每一有限生成子群皆有限的群.任意局部有限群是一个扭群(见周期群(详石浏c脚uP))，但反之未必成立(见R川亩山问题(Burnside prob七m)).一个局部有限群被另一局部有限群的扩张仍是局部有限群.满足子群(甚至是Abel子群)的极小条件的每个局部有限群均包含一个指数有限的Abel子群(【3」)(见具有有限性条件的群(gro叩俪tha血址n郎co画-tion)).一个其Abel子群具有有限秩(见群的秩(扭瓜of ag心tlP))的局部有限群本身亦具有有限秩，且包含一个有限指数的局部可解子群(见局部可解群(1.llysol姐ble grouP)).
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条