摘要

We study a variational property on the evolutionary bifurcation curves for the one-dimensional perturbed Gelfand problem from combustion theory {u"(x) + lambda exp (au/a + u) = 0, -1 < x < 1, u(-1) = u(1) = 0, where lambda > 0 is the Frank-Kamenetskii parameter or ignition parameter, a > 0 is the activation energy parameter, and u is the dimensionless temperature.