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A COLUMN RECURRENCE ALGORITHM FOR sOLVING LINEAR LEAsT sQUAREs PROBLEM

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Journal of Computational Mathematics 1996年第4期14卷 301-310页

作者： J.X. Zhao(department of Mathematics, nanjing university, nanjing {3.) nanjing UNIV DEPT MATHNANJING 210008PEOPLES R CHINA

A new column recurrence algorithm based on the classical Greville method and modified Huang update is proposed for computing generalized inverse matrix and least squares solution. The numerical results have shown the ... 详细信息

关键词： Math A COLUMN RECURRENCE ALGORITHM FOR sOLVING LINEAR LEAsT sQUAREs PROBLEM ABs

CHALLENGEs AND PROBLEMs: china's URBAN GOVERNANCE

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Chinese Geographical science 2002年第2期12卷 152-156页

作者： WANG Hong, GU Chao lin(department of Urban and Resources sciences, nanjing university, nanjing {3. P.R.china) department of Urban and Resources sciences Nanjing University Nanjing 210093 P. R. China

china′s urban reforms have brought social progress and development, but a comprehensive national system of social welfare (for example, unemployment insurance, pensions, medical care and public housing) for new migrants from rural areas is lacking. One of the most remarkable changes in Chinese cities in the last decade was a change in social "equality", with the rise of new poverty both in individual communities and some social groups in urban society. However, there is little social assistance and public infrastructure for the migrants. Governments or communities or individual should pay attention to the control of new urban poverty and new slums. This paper consider that it is necessary to launch a successful policy, which include mainly: 1) accommodating urban growth through low cost investment projects; 2) urban economy depends heavily on successful macroeconomic policy; 3. to broaden the three channels linking adjustment to the incidence of urban poverty; 4) to restructure urban economic based on the high or new technology; 5) to coordinate relationship between urban economic growth and environment management for sustainable development of Beijing′s metropolitan fringe.

关键词： urban challenges and problems urban governance urban policies

Proof of inseparable prime C~*-algebras A with RR(A)=0 being primitive C~*-algebras

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Chinese science Bulletin 1999年第8期44卷 688-690页

作者： ZHANG Lunchuan and MA Jipudepartment of Mathematics , Beijing Normal university , Beijing 100875, china department of Mathematics , nanjing university, nanjing 210093. china department of Mathematics Beijing Normal University Beijing China department of Mathematics Nanjing University Nanjing China

First, that prime C~* -algebras with countable primitive ideals are all primitive C*-algebras is proved. Then the proof that prime C~* -algebras with property RR(A) = 0 are all primitive C~*-algebras is given.

关键词： prime C~*-algebras primitive C~*-algebras hereditary C~*-algebras open projection and close projection.

surface configurations during annealing of sputter-deposited NiTi thin films

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Chinese science Bulletin 1997年第23期42卷 2019-2020页

作者： GONG Fengfei, JIANG Enyong, sHEN Huimin and WANG Yening1. department of Applied Physics, Tianjin university, Tianjin 3.0072 The National Laboratory of solid state Microstructures, nanjing university, {3. 210008 Center for Advanced studies in science and Technology of Microstructures, nanjing 210093. china 2. department of Physics, Tianjin university, Tianjin 3.0072, china 3. National Laboratory of solid state Microstructures, nanjing university, {3. 210008, Center for Advanced studies in science and Technology of Microstructures, nanjing 210093. china. department of Applied Physics Tianjin University Tianjin The National Laboratory of solid state Microstructures Nanjing University Nanjing Center for Advanced studies in science and Technology of Microstructures Nanjing China department of Physics Tianjin University Tianjin China National Laboratory of solid state Microstructures Nanjing University Nanjing

sPUTTER-DEPOsITED NiTi thin films are becoming more and more important because of their po-tential applications to the intelligent thin-film systems. The as-deposited NiTi thin films pre-pared by magnetron sputtering are generally amorphous. Because the amorphous NiTi thinfilms cannot show shape memory effect, they should be crystallized under appropriate anneal-

关键词： NiTi surface configurations during annealing of sputter-deposited NiTi thin films

QUAsI-LOCAL CONJUGACY THEOREMs IN BANACH sPACEs

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Chinese Annals of Mathematics 2005年第4期 64-71页

作者： ZHANG WEIRONG MA JIPU department of Mathematics, nanjing university, nanjing 210093. china. department of Mathematics, nanjing university, nanjing 210093. china. department of Mathematics nanjing university nanjing 210093 china.

Let f : U(x0) (?) E→F be a. C1 map and f’(X0) be the Prechet derivative of /fat X0. In local analysis of nonlinear functional analysis, implicit function theorem, inverse function theorem, local surjectivity theorem, local injectivity theorem, and the local conjugacy theorem are well known. Those theorems are established by using the properties: f’(x0) is double splitting and R(f’(x))∩N(T0+) = {0} near X0. However, in infinite dimensional Banach spaces, f’(x0) is not always double splitting (i.e., the generalized inverse of f’(xo) does not always exist), but its bounded outer inverse of f’(x0) always exists. Only using the C1 map f and the outer inverse T0# of f’(x0), the authors obtain two quasi-local conjugacy theorems, which imply the local conjugacy theorem if X0 is a locally fine point of f. Hence the quasi-local conjugacy theorems generalize the local conjugacy theorem in Banach spaces.

关键词： Frediet derivative Quasi-local conjugacy theorems Outer inverse Local conjugacy theorem

The sedimentologic-Geotectonic Evolution in the Jiangsu-Zhejiang-Anhui Region

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Acta Geologica sinica(English Edition) 1989年第2期63卷 127-137页

作者： Xia Bangdong and Lu Hongbo department of earth sciences, nanjing university, {3., Jiangsu Liu Linqun department of earth sciences Nanjing University Nanjing Jiangsu

The Yangtze plate, extending from east to west in southern china, was formed about 800 Ma ago. since the sinian, two aulacogens trending east-northeast and connected at the east ends, have been initiated in the Jiangsu-Zhejiang-Anhui region on the east margin of the plate with a sedimentary sequence up to 10,000 m in thickness. At a later stage of sedimentologic evolution, flysch and molasse were produced. The flyseh was accumulated in the Late Ordovician, when the two aulacogens became bays that opened to the east; the elastic materials were derived from the Yangtze oldland on the northern and southern sides of the basins. The molasse was accumulated from the terminal Late Ordovician to the Middle Ordovician; the clastie materials came from an uplifted orogenic belt in the east. This indicates that a major change in the tectonic pattern of the basins has taken place.

关键词： Ordovician sedimentary accumulated Jiangsu Anhui northeast tectonic Yangtze sandstone margin

On the variational principle for the topological pressure for certain non-compact sets

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science china Mathematics 2010年第4期53卷 1117-1128页

作者： PEI Yu 1 & CHEN ErCai 1,2,1 department of Mathematics,nanjing Normal university,nanjing 210097,china 2 Center for Nonlinear science,nanjing university,nanjing 210093.china 1. department of Mathematics Nanjing Normal University Nanjing 210097 China2. Center for Nonlinear Science Nanjing University Nanjing 210093 China

Let (X,d,T) be a dynamical system,where (X,d) is a compact metric space and T:X → X is a continuous *** assume that the dynamical system satisfies g-almost product property and the uniform separation *** compute the topological pressure of saturated sets under these two *** the uniform separation property does not hold,we compute the topological pressure of the set of generic *** give an application of these results to multifractal analysis and finally get a conditional variational principle.

关键词： uniform separation property g-almost product property topological pressure of non-compact sets variational principle Bs-dinmension

Exploration of Water Resource and Multiple Model for Water Resource Development in Karst Areas with the Preferred Plane Theory

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Acta Geologica sinica(English Edition) 2003年第1期77卷 129-135页

作者： LUO Guoyu, YAN Changhong, LI Xiaozhao, JIANG Jianping and MA Ji department of earth sciences, nanjing university, {3., Jiangsu 210093 department of earth sciences Nanjing University Nanjing Jiangsu 210093

According to the theory of preferred plane, preferred planes (faults) alwayscontrol the distribution of bedrock fissure water and hold abundant groundwater. Thus, theexploration of fissure or karst water can be converted into searching for the watery preferred plane(WPP). In the paper, the characteristic of watery preferred planes is analyzed and a series ofsuperior indices has been set up. It is introduced that WPPs are determined by the methods ofgeological analysis, superior index and complex geophysical analysis. Meanwhile, new multiple modelfor water resource development in the water-scarce areas of karst mountainous regions are advanced.

关键词： theory of preferred plane karst water multiple model for water resourcedevelopment

Geothermal and fluid flowing simulation of ore-forming antimony deposits in Xikuangshan

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science china earth sciences 2006年第8期49卷 862-871页

作者： YANG Ruiyan1,2, MA Dongsheng2, BAO Zhengyu3. PAN Jiayong2, CAO shuanglin2 & XIA Fei2 1. school of Mathematics and Physics, china university of Geosciences, Wuhan 43.074, china 2. state Key Laboratory for Research of Mineral Deposits,{3., nanjing 210093. china 3. Faculty of earth sciences, china university of Geosciences, Wuhan 43.074, china 1. school of Mathematics and Physics China University of Geosciences Wuhan 430074 China 2. state Key Laboratory for Research of Mineral Deposits Nanjing University Nanjing 210093 China 3. Faculty of earth sciences China University of Geosciences Wuhan 430074 China

The Xikuangshan Antimony Deposit located in the Mid-Hunan Basin, china, is the larg- est antimony deposit in the world. Based on the hydrogeological and geochemical data collected from four sections, Xikuangshan-Dajienao (AO), Xikuangshan-Dashengshan (BO), Xikuang- shan-Longshan (CO) and Dafengshan (DO) in the Basin, an advanced metallogenic model related to deep-cyclic meteoric water of Xikuangshan Antimony Deposit is put forward in this paper using a model of heat-gravity-driving fluid flow transportation. The simulation results show that the ore-forming fluid of the deposit mainly comes from the Dashengshan and Longshan areas where BO and CO sections are located if the overall basin keeps a constant atmospheric precipitation and infiltration rate during mineralization, and that the average transportation speed of the ore-forming fluids is about 0.2―0.4 m/a.

关键词： ore-forming fluid, numerical simulation, geothermal field, geofluid transport, Xikuangshan, antimony deposits.