共查询到20条相似文献,搜索用时 78 毫秒
1.
A Note on C-wrpp Semigroups 总被引:2,自引:0,他引:2
LetRdenoteGreen sR relationonasemigroupS .WedefinearightcongruenceL onSintherule:fora ,b∈S ,(a ,b) ∈L iffforallx ,y∈S1, (ax ,ay) ∈R (bx,by) ∈R .AsemigroupSissaidtobeaC wrppsemigroupifallidempotentsofSarecentralinSandeachL classofScontainsanidempotent(see [1 ] ) . Thep… 相似文献
2.
Chen Zhihua 《数学年刊B辑(英文版)》1996,17(4):436-466
§1.Introduction LetMbeacomplexmanifold.Foranyp∈MandanyX∈T1,0p(M),theKobayashiinfinitesimalpseudometric[1]ofXisF(X):=inf|a|∈C,f:DMs.t.f(0)=pandf(az)=X,whereDistheunitdiskandf∈Hol(D,M)istheholomorphicmapfromDtoM,andtheCaratheodoryinfinitesimalpeusdometricofXisE(X):=sup… 相似文献
3.
AsemigroupSiscaledπ-regularifforeveryelementaofSthereexistsm∈Z+(thesetofpositiveintegers)suchthatamisregular.Letusdenotebyr(a... 相似文献
4.
1 IntroductionForsolvingstiffinitialvalueproblemsforsystemsofODEsy′=f(y) ,y(t0 ) =y0 ,t0 <t≤T ,y0 ,y∈Rm,f :Ω Rm →Rm (1 .1 )manyparticularone blockmethodsoftheformYn+1= AYn+h( B0 F(Yn) + B1F(Yn+1) ) , A =A Im, Bi=Bi Im,A ,Bi∈Rr×r,Yn =(YTnr,… ,yT(n+1)r- 1) T,F(Yn) =(fT(ynr) ,… ,fT(y(n+1)r- 1) ) T,yj≈ y(tj) ,… 相似文献
5.
A Generalization of C—semigroup 总被引:3,自引:0,他引:3
§ 1.TheGeneralC semigroup Inthispaper,weletXbeaBanachspace,andB(X)thespaceofallboundedlinearoperatorsfromXintoX . Definition 1 .1 SupposeCisaboundedinjectiveoperatorfromXintoX .Thefamilyofboundedlinearoperators (S(t) ) t≥ 0 isageneralC semigroupifithasthefollowing… 相似文献
6.
InChapter 4of[1 ] ,fromthetheoryofoptimalinvestmentinmathematicalfinance ,thefollowinginitialvalueproblemforaparabolicMonge Amp埁reequationwasderived :VsVyy+ryVyVyy-b-rσ V2 y =0 , (y ,s) ∈R× [0 ,T) ,Vyy <0 ,V(y ,T) =g(y) , y∈R( 1 )whereV =V(y,s)istheunknownfunction ,r,b ,σaregivencon… 相似文献
7.
TENSORPRODUCTOFSEMIGROUPSANDTHEEQUATIONAC-CB=Q¥WANGSHENGwaNG;I.ERDELYIAbstract:Propertiesfortensorproductsofsemigroupsarecons... 相似文献
8.
高一年级1.在△ABC中 ,∠A =2 0° ,AB =AC =b ,BC=a .求证 :a3 +b3 =3ab2 .2 .若 π6 ≤x≤ π3,求函数 y =tanx -sin2 xtanx +sin2 x的最大值和最小值 .3 .若函数f(x)在 (-∞ ,3]上是减函数 ,且f(a2 -sinx)≤f(a+ 1+cos2 x)对一切x∈R恒成立 ,求实数a的取值范围 .高二年级1.在棱长为a的正方体ABCD -A1 B1 C1 D1中 ,过BD1 的截面分别交AA1 、CC1 于E、F两点 ,求四边形BED1 F面积的最小值 .(北京 含 笑 )2 .已知 :x ,y∈R+ ,且x + y =1.求u =1x3 +12y的… 相似文献
9.
Cheng Ping 《东北数学》1997,(2)
TheLimitDistributionofSomePPCMStatisticswithEnoughHighDimensionsandLargeSampleSizeChengPing(成平)(InstituteofSystemsScience,Aca... 相似文献
10.
§ 0 .Introduction LetCbethecomplexplane ,ΩasimpleconnecteddomaininC∪ {∞ },andU(N)therealformofthecomplex groupGL (N ,C) .Ifs :Ω→U (N )isaharmonicmap ,Uhlenbeck[1] definedtheextendedsolutionEλofs,λ∈C \{0 },whichmaybeexpandedintoaLaurentseries ∑+∞α=-∞λαTα,s=QE-1,whereQ∈U(N)isac… 相似文献
11.
In this paper,the concept of right adequate transversals of rpp semigroups is introduced.We establish the structure of rpp semigroups with multiplicative right adequate transversals in terms of right normal bands and right adequate semigroups.In particular, some special cases are considered. 相似文献
12.
13.
Kar Ping Shum 《中国科学A辑(英文版)》2004,47(4):552-565
We define orthodox super rpp semigroups and study their semilattice decompositions. Standard representation theorem of orthodox super rpp semigroups whose sub-band of idempotents is in the varieties of bands described by an identity with at most three variables are obtained. 相似文献
14.
The aim of this paper is to study a class of right pp semigroups, so-called pseudo-C- rpp semigroups. After obtaining some characterizations of pseudo-C-rpp semigroups, we establish a construction of such semigroups in terms of left normal bands and right C-rpp semigroups. In particular, a special case is considered. 相似文献
15.
In order to study rpp semigroups, in particular, some special cases, several facts on (l)-Green’s relations and strongly rpp semigroups are given as some remarks. 相似文献
16.
讨论了幂等元都是左中心元的rpp半群的半直积,给出了这种半群半直积的充要条件,推广了一些已知的结果. 相似文献
17.
18.
In this paper,we introduce Lawson partial order ≤ w on wrpp semigroups.After obtaining some properties of ≤ w,we determine when ≤ w is(left;right) compatible with the multiplication.These results extend and enrich the related results of Lawson and GuoLuo on abundant semigroups,of Guo-Shum on rpp semigroups and of Liu-Guo on wrpp semigroups. 相似文献
19.
Abundant Semigroups with a Multiplicative Adequate Transversal 总被引:6,自引:0,他引:6
Xiao Jiang Guo 《数学学报(英文版)》2002,18(2):229-244
The aim of this paper is to investigate abundant semigroups with a multiplicative adequate transversal. Some properties and
characterizations for such semigroups are obtained. In particular, we establish the structure of this class of abundant semigroups
in terms of left normal bands, right normal bands and adequate semigroups with some simple compatibility conditions. Finally,
we apply this structure to some special cases.
Received February 25, 1999, Revised November 22, 1999, Accepted December 9, 1999 相似文献
20.
We study a class of special strongly rpp semigroups, namely, the class of super rpp semigroups. These super rpp semigroups
are generalizations of both superabundant semigroups and Clifford semigroups within the class of rpp semigroups. In particular,
we prove that a super rpp semigroup is a semilattice of D
(l)-simple strongly rpp semigroups. Our result not only generalizes a well-known theorem of Clifford in the class of completely
regular semigroups but also strengthens some structure theorems obtained by Ren-Shum for superabundant semigroups which are
orthodox. Some special super rpp semigroups are considered and discussed. 相似文献