... Boundary Value Problems in u. The boundary condition 1.2 arises naturally in applications and has been studied by the authors of 1–4, among others, in particular in the context of population ... Texas State University,San Marcos, Tex, USA.10 J. R. Parks, “Criticality criteria for various configurations of a self-heating chemical as functions of activation energy and temperature of assembly,” ... of solutions and S-shaped bifurcation curves for the p-Laplacian perturbed Gelfand problem in one space variable,” Journal of Mathematical Analysis andApplications, vol. 342, no. 2, pp. 1175–1191,...