检索结果-南通市图书馆

Pointwise estimates for the maximal multilinear singular integral operators

在线全文

学校读者我要写书评

暂无评论

science china mathematics 2005年第12期48卷 1696-1706页

作者： HU Guo’en, LI Dengfeng & LU Shanzhen Department of Applied mathematics, university of information Engineering, P. O. Box 1001 -747, Zhengzhou 450002, china college of Mathematical and information sciences, Henan university, Kaifeng 475001, china Department of mathematics, Beijing normal university, Beijing 100875, china Department of Applied mathematics University of Information Engineering Zhengzhou 450002 China college of Mathematical and information sciences Henan University Kaifeng 475001 China Department of mathematics Beijing Normal University Beijing 100875 China

Two pointwise estimates relating the maximal multilinear singular integral operators and some classical maximal operators are established. These pointwise estimates imply the rearrangement estimate and the BLO(Rn) est... 详细信息

关键词： multilinear singular integral,maximal operator,BMO (Rn),BLO (Rn).

Asymptotic normality and strong consistency of maximum quasi-likelihood estimates in generalized linear models

在线全文

学校读者我要写书评

暂无评论

science china mathematics 2006年第2期49卷 145-157页

作者： YIN Changming, ZHAO Lincheng & WEI Chengdong School of mathematics and information science, Guangxi university, Manning 530004, china Department of Statistics and Finance, university of science and Technology of china, Hefei 230026, china Department of mathematics, Guangxi Teacher college, Manning 530001, china School of mathematics and information science Guangxi University Nanning China Department of Statistics and Finance University of Science and Technology of China Hefei China Department of mathematics Guangxi Teacher College Nanning China

In a generalized linear model with q x 1 responses, the bounded and fixed (or adaptive) p × q regressors Zi and the general link function, under the most general assumption on the minimum eigenvalue of ZiZ'i,the moment condition on responses as weak as possible and the other mild regular conditions, we prove that the maximum quasi-likelihood estimates for the regression parameter vector are asymptotically normal and strongly consistent.

关键词： generalized linear models quasi-likelihood estimates asymptotic normality strong consistency.

Lie bialgebras of generalized Witt type

在线全文

学校读者我要写书评

暂无评论

science china mathematics 2006年第4期49卷 533-544页

作者： SONG Guang’ai & SU Yucai college of mathematics and information science, Shandong Institute of Business and Technology, Yantai 264005, china Department of mathematics, university of science and Technology of china, Hefei 230026, china Department of mathematics, Shanghai Jiaotong university, Shanghai 200240, china college of mathematics and information science Shandong Institute of Business and Technology Yantai China Department of mathematics Shanghai Jiaotong University Shanghai China Department of mathematics University of Science and Technology of China Hefei China

In this paper, all Lie bialgebra structures on the Lie algebras of generalized Witt type are considered. It is proved that, for any Lie algebra W of generalized Witt type, all Lie bialgebras on W are the coboundary triangular Lie bialgebras. As a by-product, it is also proved that the first cohomology group H1(W, W(?)W) is trivial.

关键词： Lie bialgebras, Yang-Baxter equation, Lie algebra of generalized Witt type.

Image space analysis for variational inequalities with cone constraints and applications to traffic equilibria

在线全文

学校读者我要写书评

暂无评论

science china mathematics 2012年第4期55卷 851-868页

作者： LI Jun 1,& HUANG NanJing 2 1 college of mathematics and information,china West normal university,Nanchong 637009,china 2 Department of mathematics,Sichuan university,Chengdu 610064,china college of mathematics and information China West Normal University Nanchong China Department of mathematics Sichuan University Chengdu China

In this paper,the image space analysis (for short,ISA) is employed to investigate variational in- equalities (for short,VI) with cone *** separation for VI with cone constraints is characterized by using the normal cone to a regularization of the image,and saddle points of the generalized Lagrangian func- ***-type necessary and sufficient optimality conditions for VI with cone constraints are presented by using a separation *** functions and weak sharpness for VI with cone constraints are also investi- ***,the obtained results are applied to standard and time-dependent traffic equilibria introduced by Daniele,Maugeri and Oettli.

关键词： variational inequality image space analysis linear separation necessary and sufficient optimalitycondition traffic equilibrium

INVOLUTIVE BASES UNDER COMPOSITION

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Systems science & Complexity 2007年第3期20卷 397-402页

作者： Zailiang TANG Department of mathematics and information science Mianyang Normal University Mianyang 621000 China.

In this paper, the behaviors of involutive bases under composition operation are studied. For two kinds of involutive bases, i.e., Pommaret bases, Janet bases, we study their behavior problems under composition. Some ... 详细信息

关键词： Involutive bases Janet bases polynomial composition Pommaret bases.

Quantum secret sharing between m-party and n-party with six states

在线全文

学校读者我要写书评

暂无评论

science china(Physics,Mechanics & Astronomy) 2009年第8期52卷 1191-1202页

作者： GAO Ting1,YAN FengLi2,3 & LI YouCheng2,3 1 college of mathematics and information science,Hebei normal university,Shijiazhuang 050016,china 2 college of Physics and information Engineering,Hebei normal university,Shijiazhuang 050016,china 3 Hebei Advanced Thin Films Laboratory,Shijiazhuang 050016,china college of mathematics and information science Hebei Normal University Shijiazhuang China college of Physics and information Engineering Hebei Normal University Shijiazhuang China Hebei Advanced Thin Films Laboratory Shijiazhuang China

A quantum secret sharing scheme between an m-party group and an n-party group is proposed using three conjugate bases.A sequence of single photons,each of which is prepared in one of the six states,is used directly to encode classical information in the quantum secret sharing *** this scheme,each of all m members in group 1 chooses randomly his/her own secret key individually and independently,and directly encodes his/her respective secret information on the states of single photons via unitary operations,then the last one sends 1/n of the resulting qubits to each member of group *** measuring their respective qubits,all members in group 2 share the secret information shared by all members in group *** renders impossible a Trojan horse attack with a multi-photon signal,a fake-signal attack with EPR pairs,an attack with single photons,and an attack with invisible *** give the upper bounds on the average success probabilities for dishonest agent eavesdropping encryption using the fake-signal attack with any two-particle entangled states.

关键词： quantum secret sharing security EPR pairs

BIFURCATIONS OF PERIODIC ORBITS IN THREE-WELL DUFFING SYSTEM WITH A PHASE SHIFT

在线全文

学校读者我要写书评

暂无评论

Journal of Systems science & Complexity 2011年第3期24卷 519-531页

作者： Jicai HUANG Han ZHANG School of mathematics and Statistics Central China Normal University Wuhan 430079 China college of information Technical science Nankai University Tianjin 300071 China.

Bifurcations of periodic orbits of three-well Duffing system with a phase shift are investigated in detail. The conditions of the existence and bifurcations for harmonics, subharmonics （2-order, 3- order and m-order） and superharmonics under small perturbations are given by using second-order averaging method and Melnikov＇s method. The influence of the phase shift on the dynamics is also obtained.

关键词： Bifurcations Melnikov's method periodic orbits second-order averaging three-well Duffing system.

Structural Features and Molecular Evolution of Bowman-Birk Protease Inhibitors and Their Potential Application

在线全文

学校读者我要写书评

暂无评论

Acta Biochimica et Biophysica Sinica 2005年第5期37卷 283-292页

作者： Rui-Feng QI~(1.2) Zhan-Wu SONG~1 Cheng-Wu CHI~(2.3). 1 college of Life science, northwest normal university, lanzhou 730070, china: 2 Institute of Biochemistry and Cell Biology, Chinese Academy of sciences, Shanghai 200031, china 3 Institute of Protein Research, Tongji university, Shanghai 200092, china college of Life science Northwest Normal UniversityLanzhou 730070 China Institute of Biochemistry and Cell Biology Chinese Academy of SciencesShanghai 200031 China Institute of Protein Research Tongji UniversityShanghai 200092 China

The Bowman-Birk inhibitors(BBIs)are well-studied serine protease inhibitors that areabundant in dicotyledonous and monocotyledonous *** from dicots usually have a molecular weightof 8k and are double-headed with two reactive sites,whereas those from monocots can be divided into twoclasses,one approximately 8 kDa in size with one reactive site(another reactive site was lost)and the otherapproximately 16 kDa in size with two reactive *** reactive site is located at unique exposed surfacesformed by a disulfide-linked β-sheet loop that is highly conserved,rigid and mostly composed of *** structural features and molecular evolution of inhibitors are described,focusing on the conserveddisulfide *** sunflower trypsin inhibitor-1(SFTI-1),with 14 amino acid residues,is a recentlydiscovered bicyclic inhibitor,and is the most small and potent naturally occurring Bowman-Birk ***,BBIs have become a hot topic because of their potential *** are now used fordefense against pathogens and insects in transgenic plants,which has advantages over using toxic andpolluting *** could also be applied in the prevention of cancer,Dengue fever,and inflammatoryand allergic disorders,because of their inhibitory activity with respect to the serine proteases that play apivotal role in the development and pathogenesis of these *** canonical nine-residue loop of BBIs/STFI-1 provides an ideal template for drug design of specific inhibitors to target their respective proteases.

关键词： Bowman-Birk protease inhibitor sunflower trypsin inhibitor-1(SFTI-1) molecular evolution drug design

Weighted weak type estimates for commutators of the Marcinkiewicz integrals

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

science china mathematics 2004年第1期47卷 83-95页

作者： DING Yong, LU Shanzhen & ZHANG PuDepartment of mathematics, Beijing normal university, Beijing 100875, china Department of information and Computing science, Zhejiang Institute of science and Technology, Hangzhou 310033, china Department of mathematics Beijing Normal University Beijing China Department of information and Computing science Zhejiang Institute of Science and Technology Hangzhou China

In this paper the authors give the weighted weak LlogL type estimates for a class of the higher order commutator generated by the Marcinkiewicz integral and a BMO function. In addition, the weak type norm inequalities... 详细信息

关键词： Marcinkiewicz integral, commutator, Ap weight, weak type estimate.