摘要
Under the sign assumptions we investigate the global existence of solutions of the initial value problem x' =f(t, x, x'), x(0) = A, where the scalar function f(t, x,p) may be singular at x = A.
Under the sign assumptions we investigate the global existence of solutions of the initial value problem x' =f(t, x, x'), x(0) = A, where the scalar function f(t, x,p) may be singular at x = A.