具有两个分担值集的亚纯函数唯一性

证明了若f与g是两个非常数亚纯函数,满足E(S,f)=E(S,g)和E(∞,f)=E(∞,g),并且有λΘ(∞,f)+μΘ(∞,g)1/2,这里S={ωω7-42ω2+70ω-30=0},且λ+μ=1,λ,μ∈[0,1],则f≡g.     

亚纯函数及其导数分担小函数集的唯一性

研究了亚纯函数及其k阶导数权分担小函数集的唯一性,得到了:设k,n为正整数,f,g为开平面上超越亚纯函数,以∞为IM公共值,E(S1,f)=E(S1,g)且E1(S2,f(k))=E1(S2,g(k)l(≥2)∈N如果2nδ2+k(an,fn)+(nk+4)Θ(∞,f)n(k+1)+4则f≡tg(tn=1)或[f(k)n(akn)][(gkn)(akn)]=]bn-(akn])2,并且文中还讨论了当l=0,1时的情形.这些定理推广和改进了先前的一些结果.     

具有三个公共值集的亚纯函数的唯一性

讨论了亚纯函数的唯一性问题 ,得到如下结果 :设S ={z|azn-n(n - 1)z2 + 2n(n - 2 )bz -(n - 1) (n - 2 )b2 =0 } ,其中n(>4 )是一个整数 ,a和b是两个非零复数 ,且满足abn - 2 ≠ 2 .如果f与g为非常数亚纯函数 ,且满足E(S ,f) =E(S ,g) ,E({∞ } ,f) =E({∞ } ,g) ,及E({ 0 } ,f) =E({ 0 } ,g) ,则f =g ,或 (f-b) (g -b) =b2 .     

权分担三个集合的亚纯函数的唯一性

利用权分担集合的思想讨论了关于分担三个集合的亚纯函数的唯一性问题．证明了：设f与g是开平面上两个非常数亚纯函数,k：（i=1,2,3）为非负整数,n为不小于2的整数．若Ek1（{1,ω,ω^2,…,ω^n},f）=Ek1（{1,ω,ω^2,…,ω^n}g）Ek2（{0},f）=Ek2（{0},g）Ek3（{∞},f）=Ek3（{∞}g）且a,b,c,n满足（an-a-2）（bcn-b-f）〉2bcn,其中k1＋1=a,k2＋1=b,k3＋1=c,则f=tg（t^n=1）;或fg=s（s^n=1）,且0和∞为f与g的缺省值．     

关于在K1,n-free图中存在正则因子度条件的推广

图被称为K1,n-free图,如果它不含有导出子图K1,n。设G是一个具有顶点集V(G)的图,并设g和f是两个定义在V(G)的函数,使得g(x) f(x)对所有V(G)中的点x都成立。设a=max{g(x)|x∈V(G)},b=min{f(x)|x∈V(G)},并有b,a 2,n b/(a-1) 1(如果存在点v∈V(G)使得f(v)≡1(mod2),假定b n-1)。证明了:每个连通的使得∑x∈V(G)f(x)为偶数的K1,n-free图G有(g,f)-因子,如果它的最小度至少是(n-1)(a 1)b 1「b a(n-1)2(n-1) -n-1b「b a(n-1)2(n-1) 2 n-3.这个结果是K.Ota和T.Tokuda(J.GraphTheory.1996,22:59-64.)关于在K1,n-free图中存在正则因子度条件的推广。     

少极点的亚纯函数

设 f ,g是非常数亚纯函数 ,n是非负整数 ,a ,b是f,g的小函数 ,其中a(n) b。若E(b,f(n) ) =E(b,g(n) )及Θ(∞ ,f) =Θ(∞ ,g) =1,Θ(a ,f) Θ(a ,g) >2 - 12 (n 1) ,则f≡g或 ( f(n) -a(n) ) (g(n) -a(n) )≡ (b -a(n) ) 2 。     

二分图中度条件与[a,b]-覆盖图

设G是一个图,用V(G)和E(G)表示它的顶点集和边集,并设g和f是定义在V(G)上的两个整数值函数且g相似文献   

关于整函数的DM分担值集

文章证明了:不存在非常数整函数f和g及三个互异的有穷复数a1,a2,a3,使得f和g以a1为DM分担值,以{a2,a3}为DM分担值集,并且f和g满足:(E)∈(C),使得m(r,f-c/g-c)=S(r,f)或者f满足:(E)d∈(C),使得δ(d,f)＞0.本文在一定的限制条件下,推广了Mues的一个相关结果.     

亚纯函数具有有限公共值集问题

证明了如下结论.设f和g是两个非常数亚纯函数，如果Θ(∞,f)+Θ(∞,g)＞3/2，且Θ(∞,f)＞3/4或Θ(∞,g)＞3/4，存在一个含有七个元素的集合S并满足E₃₎(S,f)=E₃₎(S,g),那么f≡g.     

分担一个多项式的全纯函数的唯一性(英文)

本文主要研究了全纯函数分担一个非零多项式的唯一性问题,并且得到了:若f,g为2个非常数的超越整函数,n,k,l为3个正整数且满足5l>4n+5k+7.如果[L(f)](k)与[L(g)](k)IM分担次数小于或等于5的非零多项式P(z),则或者f(z)=λ1eλQ(z)+c,g(z)=λ2e-λQ(z)+c,或者f(z)与g(z)满足代数方程R(f,g)≡0,这里Q(z)=∫z0p(z)dz,λ1,λ2,λ及c为4个常数,且满足等式(λ1λ2)n(nλ)2=-1,并且R(ω1,ω2)=L(ω1)-L(ω2).此外,就[L(f)](k)与[L(g)](k)IM或CM分担不动点的情形也进行了详细的研究。     

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.     

Features of Women's language

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.     

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.