“…Consider a solution x(t, γ) of initial value problem (5), (7). If γ > 0, then x (t, γ) and x(t, γ) are positive and increasing functions for ) If x(t, γ) is a solution of initial value problem (5), (7) with γ > 0, then x(t, γ) is defined for all t 0 (t γ = ∞). ) Consider a solution x(t, γ) of initial value problem (5), (7).…”