Abstract
This article deals with the critical curves for a degenerate parabolic system coupled via nonlinear boundary flux. By constructing the self-similar supersolution and subsolution, we obtain the critical global existence curve. The critical curve of Fujita type is conjectured with the aid of some new results.
Acknowledgements
This work is supported in part by NNSF of China (10571126) and in part by Program for New Century Excellent Talents in University.