检索结果-南通市图书馆

DEGENERATED HOMOCLINIC BIFURCATIONS WITH HIGHER DIMENSIONS

在线全文

学校读者我要写书评

暂无评论

Chinese Annals of mathematics,Series B 2000年第2期21卷 201-210页

作者： JINYINLAI ZHUDEMINC departmentofmathematics EastChinaNormalUniversityShanghai200062China. departmentofmathematics LinyiTeacherCollegeLinyi276005ShandongChina.

The degenerated homoclinic bifurcation for high dimensional system is considered. The existence, uniqueness, and incoexistence of the 1-homclinic orbit and 1-periodic orbit near　Г are studied under the nonresonant c... 详细信息

关键词： Local coordinates Poincare map Homoclinic orbit Periodic orbit 2-fold periodic orbit Resonant condition

Boundedness for commutators of fractional Hardy operators on Herz spaces

在线全文

学校读者我要写书评

暂无评论

Progress in Natural Science:Materials International 2007年第1期17卷 20-25页

作者： FU Zunwei, LIU Zongguang and LU Shanzhen ( School of Mathematical Sciences, Beijing normal university, Beijing 100875, China department of mathematics,{3., linyi 276005, China department of mathematics, China university of Mining and Technology, Beijing 100083. China) [a]School of Mathematical Sciences Beijing Normal University Beijing China [b]Departhent of mathematics Linyi Normal University Linyi China [c]Departhent of mathematics China University of Mining and Technology Beijing China

Some boundedness results are established for commutators generated by classical fractional Hardy operators and one-sided CMO functions on the homogeneous Herz spaces, which extends some known results.

关键词： fractional Hardy operator Hardy’s integral inequality commutator one-sided CMO function homogeneous Herz space.

Characterization for commutators of n-dimensional fractional Hardy operators

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 2007年第10期50卷 1418-1426页

作者： Zun-wei FU~(1,2) Zong-guang LIU~3.Shan-zhen LU~(1+) Hong-bin WANG~3.~1 School of Mathematical Sciences,Beijing normal university,Beijing 100875,China ~2 department of mathematics,{3. normal university,{3. 276005,China ~3.department of mathematics,China university of Mining and Technology (Beijing),Beijing 100083.China 1. School of Mathematical Sciences Beijing Normal University Beijing 100875 China 2. department of mathematics Linyi Normal University Linyi 276005 China 3. department of mathematics China University of Mining and Technology (Beijing) Beijing 100083 China

In this paper,it was proved that the commutator H_(β,b)generated by an n-dimensional fractional Hardy operator and a locally integrable function b is bounded from L^(p1)(R^n)to L^(p2)(R^n)if and only if b is a CMO(R^... 详细信息

关键词： n-dimensional fractional Hardy operator, commutator, C(M)O function, homogeneous Herz space

EQUIVALENT CONDITIONS FOR THE FINITENESS OF GAUGE

在线全文

学校读者我要写书评

暂无评论

Systems Science and Mathematical Sciences 1997年第4期10卷 299-308页

作者： YIN Chuancun(department of mathematics, Qufu normal university, Shandong 273.65, China)JIANG Zhaolin(department of mathematics, linyi Teacher,College, Shandong 276005, China)

Some equivalent conditions for the finiteness of gauge on a class of unboundeddomains in Rd are given.

关键词： Gauge additive functional Brownian motion.

Nonequilibrium Solvent Free Energy Curve from Molecular Theory in Electron Transfer Reaction

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 1997年第5期8卷 439-442页

作者： Jian XIJ Zheng YM ZHOU(department of Chendstry, Qufu normal university, Qufu, 273.65)Ke Zhong ZHANG({3. Anucahon College, {3., 276000) QUFU normal UNIV DEPT CHEMQUFU 273165PEOPLES R CHINA

The microscopic moleeular theory for electron transfer in a model solvent ishahr developed. The nonlinear response of the solvent molecules is be computedquanitatively in a new way. Adopting computer simulation daa and choosingappropriate reaction coordinae, a reasonable free energy dinram is constructed and thercorganhaion energy for the product state is calculated.

关键词： Free Nonequilibrium Solvent Free Energy Curve from Molecular Theory in Electron Transfer Reaction cm

A REGULARIZATION NEWTON METHOD FOR MIXED COMPLEMENTARITY PROBLEMS

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Scientia 2004年第3期24卷 376-384页

作者：王宜举周厚春王长钰 Institute of Operations Research Qufu Normal University Rizhao 276800 China School of Mathematics and Computer Science Nanjing Normal University Nanjing 210091 China School of mathematics and Computer Science Nanjing Normal University Nanjing 210097 China Department of Mathematics Linyi Teachers College Linyi 276005 China is proposed. Its global convergence is proved under the assumption that F is a P0-function. The main feature of our algorithm is that a priori of the existence of an accumulation point for convergence need not to be assumed.

In this paper, a regularization Newton method for mixed complementarity problem(MCP) based on the reformulation of MCP in [1] is proposed. Its global convergence is proved under the assumption that F is a P0-function. The main feature of our algorithm is that a priori of the existence of an accumulation point for convergence need not to be assumed.

关键词： regularization Newton method global convergence super-linear convergence

Bifurcations of Rough Heteroclinic Loops with Three Saddle Points

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,English Series 2002年第1期18卷 199-208页

作者： JIN Yin Lai ZHU De Ming department of mathematics. linyi Teachers university. Shandong {3.. P. R. China department of mathematics. East China normal university. Shanghai 200062. P. R. China department of mathematics. East China normal university. Shanghai 200062. P. R. China department of mathematics Linyi Teachers' University Shandong P. R. China department of mathematics East China Normal University Shanghai P. R. China

In this paper, we study the bifurcation problems of rough heteroclinic loups cormecting threc saddle points for a higher-dimensional system. Under some transversal conditions and the nontwisted condition. the existence. uniqueness. nd incoexistencc of thc l-heteroclinic loop with threc or two saddle pomts. l-homoclinic orbit and l-periodic orbit near T are obtained. Nleanwhile, the bifurcation surfaces and existence regions are also given. Moreover. the above bifurcation results are extended to the case for heteroclinic loop with l saddle points.

关键词： Local coordinates Heteroclinic loop Homoclinic orbit Periodic orbit Bifurcation surface

Fabrication, microstructure and properties of SiCp/Cu heat sink materials

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2006年第z2期25卷 232-236页

作者： KANG Suk-bong Korea Institute of Machinery and Materials 66 Sangnam-dong Changwon 641-010 Korea

Cu-coated powder was fabricated by electroless plating process, and the composition and morphology of coated powder were studied. Moreover, Cu-3., 40, 50 vol.%SiCp heat sink materials were fabricated by hot pressing using coated and uncoated powder. And the microstructure and thermophysical properties of the heat sink materials were also studied. The results show that SiCp particles distribute uniformly in heat sink materials and the interface between SiCp particles and Cu matrix is clear and well bonded. On the condition of same volume fraction of SiCp, the thermal conductivity of the material using coated powder is larger than that of the material using uncoated powder. Under experiment conditions, the thermal conductivity and coefficient of thermal expansion of Cu-3. vol.%SiCp heat sink material is 23..2 W·m-1·K-1 and 9.9×10-6/K (3.-200 ℃) respectively. It provides important reference data for future experiments.

关键词： heat sink material electroless copper plating coefficient of thermal expansion thermal conductivity

A POSTERIORI ERROR ESTIMATES IN ADINI FINITE ELEMENT FOR EIGENVALUE PROBLEMS

在线全文

学校读者我要写书评

暂无评论

Journal of Computational mathematics 2000年第4期18卷 413-418页

作者： Yi-du Yang (department of mathematics, Guizhou normal university, Guiyang, 550001) 贵州师范大学贵州贵阳 550001

In this paper, we discuss a posteriori error estimates of the eigenvalue λ[sub h] given by Adini nonconforming finite element. We give an assymptotically exact error estimator of the λ[sub h]. We prove that the order of convergence of the λ[sub h] is just 2 and the converge from below for sufficiently small h. [ABSTRACT FROM AUTHOR]

关键词： eigenvalue nonconforming finite element error estimate