On the upper bound of eigenvalues for a differential equation

The solution of first order ordinary differential equation with the integral factor of a product form

Existence and application of two integrating factors on first order ordinary differential equation

Essentially,the opposite reaction kinetics process is a process of resolving the first order ordinary differential equation.

Effective solution method for the first-order ordinary differential equation system;

Through preliminary analysis, thorough study and elaborate deduction, the author elucidated the necessity of replacing constant C with function c(x) in solving linear ordinary differential equation of the first order.

Solving process of monotonic iteration to the initial value question of non-continuous ordinary differential equation of the first order is discussed, the known results are generalized.

Positive solutions to sub-linear ordinary differential equations;

Analysis and comparison of some numerical methods for the initial value problem of ordinary differential equations;

The implications from “many solutions” to ordinary differential equation;