Contents of Volume 5, Number 1 January 1997

Positive Solutions of Second Order Difference Inequalities
SHENG-LI XIE, GUANG ZHANG AND SUI SUN CHENG
Pages 1 - 12

Asymptotic Behavior of the Solutions of Certain Complex Differential Equations
PATRICIO GONZÁLEZ AND MANUEL PINTO
Pages 13 - 24

Attractivity Criteria for Intermittently Damped Second Order Nonlinear Differential Equations
J´ANOS KARSAI
Pages 25 - 42

Nonexistence of Small Periodic Traveling Wave Solutions to the Power Kadomtsev-Petviashvili Equation
YUNKAI CHEN AND XIAOGUI HE
Pages 43 - 50

Periodic Solutions with the Same Period of the Recursion $x_{n+1} = \frac{\alpha +\beta x_n + \gamma x_{n-1}}{A + B x_n + C x_{n-1}}$
YU ZHENG
Pages 51 - 58

Exponential Dichotomies, Invariant Splitting and the Existence of Wave-front Like Solutions for a Model of Population Genetics
Y. GHABBAR
Pages 59 - 74

Oscillation and Global Attractivity in a Multiplicative Delay Logistic Equation
MING-PO CHEN, B.S. LALLI AND J.S. YU
Pages 75 - 84

On First Order Ordianry Differential Equations with Infinitely Many State Dependent Impulses
FRANSCOIS DUBEAU

Pages 85 - 90

Characterizing Isochronous Centres by Lie Brackets
M. SABATINI
Pages 91