Project supported by the National Natural Science Foundation of China(No.11071075);the Natural Science Foundation of Shanghai(No.10ZR1409200)
The step-type contrast structure for a singular singularly perturbed problem is shown. By use of the method of boundary function, the formal asymptotic expansion is constructed. At the same time, based on sewing orbit...
Supported by the National Natural Science Funds (11071075);the Natural Science Foundation of Shanghai(10ZR1409200);the National Laboratory of Biomacromolecules,Institute of Biophysics,Chinese Academy of Sciences;the E-Institutes of Shanghai Municipal Education Commissions(E03004)
In this article, the interior layer for a second order nonlinear singularly perturbed differential-difference equation is considered. Using the methods of boundary function and fractional steps, we construct the formu...