the road traffic analysis based on an urban traffic model of the circular working field
ming-zhe li faculty of economics; fukuoka university; 8-19-1 nanakuma; jonan ku; fukuoka 814-0140; japan

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

on the decay of solutions for some nonlinear dissipative hyperbolic equations
yao-jun ye beijing graduate school of chinese academy of engineering physics; p.o.box 2101; beijing 100088 & department of informational and computational science; henan agricultural university; zhengzhon 450002

..............page:95-102

positive steady states of a competitor-competitor-mutualist model
wen-yan chen ming-xin wang department of mathematics; southeast university; nanjing 210018; china

..............page:55-59

convergence of symmetric diffusions on wiener spaces
a.posilicano~1 t.s.zhang~21 dipartimento di scienze; universit dell insubria; i-22100 como; italy(e-mail:posilicano@uninsubriait)2 department of mathematics; university of manchester; manchester m13 9pl; uk

..............page:21-26

boundedness of nonlinear differential systems with impulsive effect on random moments
shu-jin wu~1 xian-zhang meng~21 department of statistics; east china normal university; shanghai 200062; china2 department of mathematics; shanghai jiaotong university; shanghai 200240; china

..............page:149-156

number and location of limit cycles in a class of perturbed polynomial systems
chen-xi yang~1 rui-qi wang~21 department of mathematics; yuxi normal college; yuxi 653100; china2 academy of mathematics and systems science; academia sinica; beijing; 100080; china

..............page:157-168

inequalities of hadamard type for r-convex functions in carnot groups
ming-bao sun~(1; 2) xiao-ping yang~11 department of applied mathematics; nanjing university of science and technology; nanjing 210094; china2 department of applied mathematics; hunan institute of science and technology; yueyang 414000; hunan; china

..............page:125-134

the dynamics of a predator-prey model with ivlev's functional response concerning integrated pest management
bing liu~(1; 2) ying zhi~1 lan-sun chen~(2; 3)1 department of mathematics; anshan normal university; anshan; liaoning 114005; china2 academy of mathematics and systems science; beijing 100080; china(email:liubing@amss.ac.cn)3 dalian university of technology; dalian 116024; china

..............page:135-148

nonoscillation for a second order linear delay differential equation with impulses
yan-ling tian pei-xuan weng~1 jin-ji yang~21 department of mathematics; south china normal university; guangzhou 510631; china2 department of computer sciences; south china normal university; guangzhou 510631; china

..............page:103-116

dissipation and decay estimates
linghai zhang department of mathematics; lehigh university; bethlehem; pennsylvania; usa 18015-3174

..............page:61-78

exact penalty function and asymptotic strong nonlinear duality in integer programming
fu-sheng bai~1 z.y.wu~2 l.s.zhang~31 department of mathematics; shanghai university; shanghai 200436; china2 department of mathematics and computer science; chongqing normal university; chongqing 400047; china3 department of mathematics; shanghai university; shanghai 200436; china

..............page:47-54

periodic boundary value problems for second order functional differential equations
zhong-li wei~1 chang-ci pang (department of mathematics and physics; shandong institute of architectural and engineering; jinan 250014; china)

..............page:39-46

asymptotic expansions of transition densities for hybrid jump-diffusions
yuan-jin liu g.yin department of mathematics; wayne state university; detroit; mi 48202

..............page:3-20

analyses of bifurcations and stability in a predator-prey system with holling type- functional response
ji-cai huang~1 dong-mei xiao~21 academy of mathematics and systems science; academia sinica; beijing 100080; china2 department of mathematics; shanghai jiao tong university; shanghai 200030; china

..............page:169-180

removable singularities of solutions of a-harmonic type equations
shen-zhou zheng department of mathematics; northern jiaotong university; beijing 100044(e-mail:zhengsz@vip.sina.com)

..............page:117-124

equivalence of differential system
zheng-xin zhou department of mathematics; university of yangzhou; yangzhou; china; 225002

..............page:87-94

analysis of an age structured seirs epidemic model with varying total population size and vaccination
xue-zhi li~1 geni gupur~2 guang-tian zhu~31 department of mathematics; xinyang teachers college; henan 464000; china(e-mail:xzli66@xytc.edu.cn)2 department of mathematics; xinjiang university; urumqi 830046; china3 academy of mathematics and systems science; chinese academy of sciences; beijing 100080; china

..............page:27-38