an efficient algorithm for the optimal market timing over two stocks
hui li~1 hong-zhi an~2 guo-fu wu~21 department of mathematics; beijing normal university; beijing 100875; china(e-maih lee-hui@vip.sina.com)2 academy of mathematics and system sciences; cas; beijing 100080; china

..............page:57-70

the erd zuo s-s s conjecture for graphs whose complements contain no c_4
jian-hua yin~1 jiong-sheng li~21 department of applied mathematics; college of information science and technology; hainan university; haikou 570228; china(e-mail:yinjh@ustc.edu)2 department of mathematics; university of science and technology of china; hefei 230026; china

..............page:43-46

talagrand's t_2-transportation inequality w.r.t.a uniform metric for diffusions
li-ming wu~1 zheng-liang zhang~21 laboratoire de math matiques appliqu es.cnrs-umr 6620; universit blaise pascal; 63177 aubi re; france(e-mail:li-ming.wu@math.univ-bpclermont.fr)& department mathematics; wuhan university; 430072; china2 department mathematics; wuhan university; 430072; china(e-mail:zz1731205@yahoo.com.cn)

..............page:3-10

effects of hard limits on bifurcation,chaos and stability
rui-qi wang ji-cai huang academy of mathematics and systems science; chinese academy of sciences; beijing; 100080; china(e-mail:rqwang@mail.amss.ac.cn)

..............page:87-102

biharmonic equation and an improved hardy inequality
yang-xin yao yao-tian shen zhi-hui chen departmen of applied mathematics; south china university of technology; guangzhou 510640 china(e-mail:mayxyao@scut.edu.cn)

..............page:79-86

multiple solutions of the singular impulsive boundary value problems on the half-line
bao-qiang yan yan-sheng liu department of mathematics; shandong normal university; jinan; shandong 250014; china(e-mail:bqyan819@beelink.com)

..............page:11-26

explicit expressions for the ruin probabilities of erlang risk processes with pareto individual claim distributions
li wei~1 hai-liang yang~21 academy of mathematics and systems science; chinese academy of sciences; beijing 100080; china(e-mail:weili@mail.amss.ac.cn)2 department of statistics and actuarial science; the university of hong kong

..............page:141-152

iterative algorithm for finding approximate solutions of a class of mixed variational-like inequalities
liu-chuan zeng department of mathematics; shanghai normal university; shanghai 200234; china(e-mail:zenglc@hotmail.com)

..............page:123-132

the model for two-dimensional layout optimization problem with performance constraints and its optimality function
xu zhang~1 en-min feng~2 department of applied mathematics; dalian university of technology; dalian 116024; china 1(e-mail:zhangxu0451@163.com)

..............page:47-56

a result on the probability measures dominated by g-expectation
long jiang~(1; 2) zeng-jing chen~11 school of mathematics and system sciences; shandong university; jinan 250100; china2 department of mathematics; china university of mining and technology; xuzhou 221008; china(e-mail:jianglong365@hot mail.com)

..............page:153-158

adaptive unified biased estimators of parameters in linear model
hu yang~1 li-xing zhu~(2; 3)1 college of science; chongqing university; chongqing 400044; china(e-mail:yh@cqu.edu.cn)2 department of statistics and actuarial science; the university of hong kong3 academy of mathematics and systems science; chinese academy of sciences; beijing 100080; china

..............page:71-78

dynamical behavior and singularities of a single-machine infinite-bus power system
jin-liang wang~1 sheng-wei mei~2 qiang lu~2 teo kok-lay~31 department of mathematics & limb of the ministry of education; belling university of aeronaut and astronaut; belling 100083; china(e-mail:jlw@mail.tsinghua.edu.cn; jlwang64@sina.com.cn)2 department of electrical engineering; tsinghua university; belling 100084; china3 department of applied mathematics; hong kong polytechnic university; hong kong(e-mail:mateokl@polyu.edu.hk)

..............page:103-122

on a class of vector-valued sequences associated with multiplier sequences
binod chandra tripathy~1 sabita mahanta~2 mathematical sciences division; institute of advanced study in science and technology; khanapara; guwahati-781022; india (e-mail:tripathybc@yahoo.coln); (e-mail:sabitamahanta@yahoo.co.in)

..............page:133-140

the modified upwind finite difference fractional steps method for compressible two-phase displacement problem
yi-rang yuan institute of mathematics; shandong university; jinan 250100; china(e-mail:yryuan@sdu.edu.cn)

..............page:27-42

bifurcations and stability boundary of a power system
ying-hui gao academy of mathematics and systems science; chinese academy of sciences; beijing 100080; china(e-mail:yhgao@mail.amss.ac.cn)

..............page:159-178