模李超代数■(2)的诱导模

令g=■(2)是特征p2的代数闭域F上模李超代数,构造了诱导模Ind_g~g+V,刻画其结构.通过计算其最高权向量,证明了诱导模的不可约性.     

An型量子群的基本模的典范基

设g是An型的有限维复单李代数,U是g的量子群.对g的每一个支配权λ,存在一个最高权λ的有限维不可约最高权U-模V(λ).本文确定n≤5时An型量子群的基本模V(λ)(即λ是基本支配权)的典范基.     

限制李超代数的P-包络的相关讨论

在限制李超代数新定义的基础上讨论了限制李超代数的P-包络,并给出了一些相关的结果:1)每个李超代数L都有一个P-包络;2)设(G,[P],i)是李超代数L的P-包络,ρ:L→pl(V)是L的一个阶化表示,其中V为Z2-阶化向量空间,则存在一个阶化表示ρ^:G→pl(V),使得^ρ是ρ的扩张,并且使得V的每一个阶化L-子模都是阶化G-子模;3)任意限制李超代数都有一个S-约化泛包络代数。     

素特征域上的有限维李超代数∑

对于有限维模李超代数 (即特征 p >0的域上的李超代数 ) ,目前已有的结果尚少 .文献[4 ]构造了Cartan型模李超代数 .本文应用文献 [5 ]的方法 ,构造了有限维模李超代数 ,讨论了它的中心、换位子代数与单性     

关于半单纯李代数的某些Ext~n计算

设g是特征数为0的代数闭域k上的有限维半单纯李代数和G是g的普遍包络代数.用工(λ)表示权λ的不可约最高权g-模.本文我们得到了对于某些不可约最高权g-模的Ext_G(L(μ),L(λ)).我们的结果证明在许多情况下Ext_G(L(μ),L(λ))为0,但是它们不全为零.     

Cartan型李代数W(1,1)的不可约模

利用李代数模表示的性质及诱导模给出了Cartan型李代数W(1,1)的不可约限制模只有p个同构类,同时给出了不可约限制模的具体形式.     

W(2)到Kac模的0阶上同调

确定了特征p≥3的域上Witt型模李超代数W(2)到所有限制以及非限制Kac模K_S(λ)的0阶上同调.得出以下结论:当S=0,λ=(0,2)时,W(2)到限制Kac模K_S(λ)的0阶上同调空间是一维的;否则,W(2)到Kac模K_S(λ)的0阶上同调空间都是零维的.     

单李代数的不可约模上多重线性型空间的研究

研究了复数域上单李代数L的不可约模上多重线性型空间的结构。对三维典型单李代数sl(2,F)的m+1维不可约模V(m),借助于模的张量积方法,讨论了其非零不变多重线性型的存在性。讨论了一般有限维单李代数的情形,得到了两个关于权性质的初步结论。     

特征2上Special代数S(3,1)的极小权向量

通过研究李代数的既约包络代数的极小左理想来研究李代数的不可约模,通过确定生成极小左理想的极大权向量来确定不可约模,给出了特征p=2上的Special代数S(3,1)的特征标χ的高度为0的不可约模和它们的维数.     

有限维李超代数的模表示（英文）

研究了特征大于2的代数闭域上有限维李超代数的表示.证明了有限维李超代数的单模都是有限维的,并且所有单模的维数有上界.进一步,一个有限维李超代数可以嵌入到一个有限维限制李超代数.给出了有限维限制李超代数g上单模的判定准则,定义了g的一个限制李超子代数,得到了该子代数的单模同构类和g的单模同构类之间的一个双射.这些结果是素特征域上李代数相关理论的推广.     

Markedness and its Interpretation in Language Use

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.     

Lower Paleozoic oil relationships within Williston Basin, Canada

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

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.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

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.     

Design and analysis of generic LBS application developing platform

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.     

橡胶颗粒沥青混合料低温抗裂性试验研究

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.     

A computer generator for randomly layered structures

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

低渗透非均质砂岩油藏启动压力梯度研究

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。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

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.     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.