International Journal of Mathematics and Mathematical Sciences
Volume 1 (1978), Issue 1, Pages 1-12
doi:10.1155/S0161171278000010
  
     
          
          Behavior of second order nonlinear differential equations
          
            Rina Ling
          
          Department of Mathematics, California State University, Los Angeles 90032, California, USA
          
          Abstract
Qualitative behavior of second order nonlinear differential equations with variable coefficients is studied. It includes properties such as positivity, number of zeroes, oscillatory behavior, boundedness and monotonicity of the solutions.