a globally convergent trust region algorithm for optimization with general constraints and simple bounds
chen zhongwen (department of mathematics; suzhou university; suzhou 215000; china)han jiye ; han qiaoming (institute of applied mathematics; the chinese academy of sciences; beijing 100080; china)

..............page:425-432

a tight lower bound on the maximum genus of 3-edge connected loopless graphs
li deming (department of mathematics; capital normal university; beijing 100037; china)liu tanpei (department of mathematics; northern jiaotong university; beijing 100044; china)

..............page:361-367

A RISK MODEL WITH DELAYIN CLAIM SETTLEMENT
wu rong (department of mathematics; nankai university; tianjin 300071; china)fang kaithi (deportment oj mathematics; hong kong baptist university; hong kobe china)

..............page:352-360

EXISTENCE OF EQUILIBRIUM FOR ECONOMIES WITH INFINITELY MANY COMMODITIES AND INFINITELY COUNTABLE CONSUMERS WANG YIMING
(school of economics; beijing university; beijing 100871; china)shou jilin (department of applied mathematics; xi an jiaotong university; xi an 710049; china)

..............page:345-351

QUASI-PERIODIC SOLUTIONS ANDSUB-HARMONIC BIFURCATION OF DUFFING'S EQUATIONS WITH QUASI-PERIODIC PERTURBATION
xu pengcheng (institute of applied mathematics; academia sinica; beijing 100080; china)jing zhujun (institute of mathematics; academia sinica; beijing 100080; china)

..............page:374-384

bifurcation of limit cycles for the quadratic differential system ( )l = n = 0
zhang xiang (department of mathematics; nanjing normal university nanjing 210097; china)

..............page:368-373

THE EXTINCTION IN NONAUTONOMOUS PREY-PREDATOR LOTKA-VOLTERRA SYSTEMS
teng zhidong(department of mathematics; xinjiang university; urumqi 830046; china)yu yuanhong(institute of applied mathematics; the chinese academy of sciences; beijing 100080; china)

..............page:401-408

some graphs which have ascending subgraph decomposition
zhuo xinjian (institute of applied mathematics; the chinese academy of sciences; beijing 100080; china)su yongmei (deportment of mothemotics and physics; shandong university of technology; jinan 250061; china)ma kejie (institute of operations research; quf

..............page:396-400

on the spectral properties of m-matrices and its applications
li wen (department of mathematics; south china normal university; guangzhou 510631; china)sun weiwei (department of mathematics; city university of hong kong; hong kong; china)

..............page:418-424

combinatorial codes for error detection
xia shutao ; fu fangwei (department of mathematics; nankai university; tianjin 300071; china)

..............page:444-446

solving akns equations via jacobi inversion problem
zeng yunbo(department of mathematical sciences; tsinghua university; beijing 100084; china)

..............page:337-344

forward-backward stochastic differential equations with brownian motion and poisson process
wu zhen (school of mathematics and systems science; shandong university; jinan 250100; china)

..............page:433-443

singularly perturbed boundary value problems
shi yufeng (department of mathematics; shandong university; jinan 250100; china)

..............page:409-417

a framework of parallel algebraic multilevel preconditioning iterations
bai zhongzhi (state key laboratory of scientific/engineering computing computing; institute of computational mathematics and scientific/engineering computing; the chinese academy of sciences; beijing 100080; china)

..............page:385-395