boundedness in p-nfdes
xu zhiting (dept. of applied math.; guangdong university of technology; guangzhou 510090) wen lizhi (dept. of math.; south china normal university; guangzhou 510631)

..............page:248-260

QUALITATIVE THEORY OF THE KUKLES SYSTEMS: (Ⅰ) NUMBER OF CRITICAL POINTS
ye weiyin (dept. of math.; nanjing normal university; nanjing 210097) ye yanqian (dept. of math.; nanjing university; nanjing 210098) (dedicated to professor su buqing on his 100 years birthday)

..............page:275-286

oscillation criteria for certain nonlinear difference equations
sun yuangong (dept. of math.; qufu normal university; qufu 273165)

..............page:242-247

A NOTE ON GLOBAL ATTRACTIVITY OF THE MODEL FOR THE SURVIVAL OF THE RED BLOOD CEELS WITH SEVERAL DELAYS
liu yuji & tan xiushan (dept. of math.; yueyang teacher s university; yueyang 414000)

..............page:224-231

PERIODIC SOLUTIONS OF DELAY DIFFERENTIAL EQUATIONS WITH TWO DELAY VIA BI-HAMILTONIAN SYSTEMS
anna cima; li jibin & jaume llibre (department of de matematiques; universitat autonoma de barcelona; 08198; barcelona; spain; school of science; kunming university of science and technology; it kunming 650093)

..............page:205-214

QUADRATIC SYSTEMS WITH A 3RD-ORDER (OR 2ND-ORDER) WEAK FOCUS
zhang pingguang (dept. of math.; zhejiang university; hangzhou 910027)

..............page:287-294

FORCED ALMOST PERIODIC OSCILLATION OF SECOND ORDER NONLINEAR EQUATION
shi jinlin (dept. of math.; fuzhou university; fuzhou 350002) (dedicated to professor su buqing on his 100 years birthday)

..............page:232-241

ON MONOTONE ITERATIVE METHOD FOR FIRST ORDER IMPULSIVE INTEGRO-DIFFERENTIAL BOUNDARY VALUE PROBLEMS IN BANACH SPACE
guo fei (dept. of math.; qufu normal university; qufu 273165) fang qingping (jinan communications college; jinan 250023)

..............page:215-223

ASYMPTOTIC BEHAVIOR OF SOLUTIONS OF NEUTRAL DIFFERENTIAL EQUATIONS WITH POSITIVE AND NEGATIVE COEFFICIENTS
zhang zhengqiu & wang zhicheng (college of mathematics and econometrics; hunan university; changsha 410082)

..............page:295-305

THE SINGULAR SECOND ORDER NONLINEAR EIGENVALUE PROBLEM WITH INFINITELY MANY POSITIVE SOLUTIONS
yao qingliu (dept. of math.; northwest normal university; lanzhou 730070)

..............page:268-274

A NEW NONLINEAR DISCRETE INEQUALITY AND ITS APPLICATION
yang enhao (dept. of math.; jinan university; guangzhou 510632) (dedicated to professor su buqing on his 100 years birthday)

..............page:261-267