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Courant-Friedrichs-Lewy Condition


A condition in numerical equation solving which states that, given a space discretization, a time step bigger than some computable quantity should not be taken. The condition can be viewed as a sort of discrete "light cone" condition, namely that the time step must be kept small enough so that information has enough time to propagate through the space discretization.


See also

Euler Forward Method

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References

Courant, R.; Friedrichs, K.; and Lewy, H. "On the Partial Difference Equations of Mathematical Physics." IBM J. 11, 215-234, 1967.

Referenced on Wolfram|Alpha

Courant-Friedrichs-Lewy Condition

Cite this as:

Weisstein, Eric W. "Courant-Friedrichs-Lewy Condition." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Courant-Friedrichs-LewyCondition.html

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