Special Session 58: Recent Advances in Numerical Methods for Partial Differential Equations

A perfectly matched layer method for scattering problem in cylindrical coordinates

Xue Jiang
Beijing University of Technology
Peoples Rep of China
Co-Author(s):    
Abstract:
This talk is focused on the modelling of signal propagations in myelinated axons. The well-posedness of model is established upon Dirichlet boundary conditions at the two ends of the neural structure and the radiative condition in the radial direction of the structure. Using the perfectly matched layer (PML) method, we truncate the unbounded background medium and propose an approximate problem on the truncated domain. The well-posedness of the PML problem and the exponential convergence of the approximate solution to the exact solution are established. Numerical experiments are presented to demonstrate the theoretical results and the efficiency of our methods to simulate the signal propagation in axons.