Five Ways of Reducing the Crank-Nicolson Oscillations

  • Ole Østerby


Crank-Nicolson is a popular method for solving parabolic equations because it is unconditionally stable and second order accurate. One drawback of CN is that it responds to jump discontinuities in the initial conditions with oscillations which are weakly damped and therefore may persist for a long time. We present a selection of methods to reduce the amplitude of these oscillations.

Author Biography

Ole Østerby
How to Cite
Østerby, O. (2002). Five Ways of Reducing the Crank-Nicolson Oscillations. DAIMI Report Series, 31(558).