首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 812 毫秒
1.
辫子Monoidal范畴M H / 上的Hopf模   总被引:1,自引:0,他引:1  
设(H,σ)为余拟三角Hopf代数,则M^H是辫子Monoidal范畴,给出辫子onoidal范畴M^H上的一个对象L是双代数的充分必要条件和M^H上的左L-Hopf模的基本结构定理。它是一般左Hopf模的基本结构定理的推广。  相似文献   

2.
高(L,(1))是辫化Hopf代数,则余模范畴μ是辫化monoidal范畴。若f:H→L是Hopf代数同态,我们可以在^Lμ中构造一个对象记为A△A(H,f,L),使A为^L中的辫化Hopf代数,我们称这过程为辫化Hopf代数的一个变形。特别地,当f为辫化Hopf代数同地,我们就从一个非变换的辫化Hopf代数得到一个辫化交换的辫化Hopf代数。最后讨论一些较了的性质。  相似文献   

3.
本文利用双代数的同态性质,给出有限维Hopf代数(H,R)是拟三角Hopf代数的充要条件.通过定义左扭曲余积,证明了Drinfel'd偶的左扭曲余积与Smash的余积同构.  相似文献   

4.
关于H-Hopf模代数   总被引:1,自引:0,他引:1  
本文引进了H-Hopf模代数.对可换Hopf代数H,证明了H-Hopf模代数范畴等价于含单位元的代数范畴;并对一个交换的H-Hopf模代数A,有:如果β:AA0A→AH为满射(这里β(ab)=Σab(0)b(1)),则A为忠实平坦的A0一模,且β为H-Hopf模代数同构.  相似文献   

5.
设H是域k上的Hopf代数,A是右H-余模代数,D是右H-模余代数,本文讨论A≠/HD*A的生成子性质及投射性质,特别地,当D=H且dimH〈∞时,有A≠H*A是生成子扩组A含中心迹为1的元素,则A≠H*A是投射模。推广了H=kG群代数的结果。  相似文献   

6.
给出如下几个主要结(1)设A为可分代数,则C余可分当且仅当卷积余代数A*C余可分为(2)设A为有限维半单可换Hopf代数,B为A的子Hopf代数,如果A余可分,那么Smash积#(A,B)为可分人薮 。  相似文献   

7.
设H是域k上的有限维Hopf代数,A是左H模代数,本文得到:当H半单时,若A有Krull维数,则AH也有,且KdimAH≤KdimA;当A是仿射PI代数时,且A含这为1的元素,对p∈Spec(AH),有GK(AH/P)=clKdim(AH/P),此结论将群作用及群分次的结果推广到一般的有限维Hopf代数H上  相似文献   

8.
设H是域k上的Hopf代数,σHomk是H的可逆的右2-余循环,A是k上的H-余模代数,我们在A中定义了新的乘法,得到一个“扭代数”Aσ。本文讨论了Hopf模范畴A^H与Aσμ^H的等价性,扩张A^C0H∩→A向A^Cσσ0H∪→Aσ的传递性,并得到了若干对偶结果。  相似文献   

9.
本文把关于Hopf代数的交叉积推广到Hopf余模代数,讨论了A#σL的一些性质,并给出了A#σL与AL同构的一个充分条件,最后还得到一个关于Hopf余模代数的对偶性定理.本文的一些结果是[2](proposition1.19)及[4](Lemma1.11)等结论的推广.  相似文献   

10.
本文首先讨论了余半单Hopf代数的Braided结构的有限性.其次,对于左H-模代数A,通过构造新的代数结构A#σH,推广了Doi.Y.在文献[2]中的部分结果.  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
Wuthering Heights, Emily Bronte's only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.  相似文献   

14.
The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3~4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰~ -7.8‰, PDB) and matrix dolomites (-6.6‰~ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084~0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078~0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.  相似文献   

15.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

16.
Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.  相似文献   

17.
以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.  相似文献   

18.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

19.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

20.
Quality traits in wheat (Triticum aestirum L.) were studied by quantitative trait locus (QTL) analysis in a recombinant inbred line (RIL) population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross (ChSh). Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号