The purpose of the present paper is to establish some new criteria for the classifications of superlinear differential equations as being of the nonlinear limit circle type or of the nonlinear limit point type. The criteria presented here generalize some known results in literature.
Lihong Xing. Wei Song. Zhengqiang Zhang. Qiyi Xu. "Limit Circle/Limit Point Criteria for Second-Order Superlinear Differential Equations with a Damping Term." J. Appl. Math. 2012 1 - 11, 2012. https://doi.org/10.1155/2012/361961