Source TeX:

\fs2 y(x) \sim c_1\,Q^{-1/4}(x)\,\exp\left({1\over \epsilon}\, \int_a^x\sqrt{Q(t)}\,dt\right)+ c_2\,Q^{-1/4}(x)\,\exp\left(-{1\over \epsilon}\,\int_a^x\sqrt{Q(t)}\,dt\right)