The Oscillatory Behavior of Second Order Nonlinear Elliptic Equations.

Some oscillation criteria are established for the nonlinear damped elliptic differential equation of second order [Multiple line equation(s) cannot be represented in ASCII text] which are different from most known ones in the sense that they are based on a new weighted function H(r; s; l) defined in the sequel. Both the cases when Dibi (x) exists for all i and when it does not exist for some i are considered. [ABSTRACT FROM AUTHOR]