Engquist–Majda absorbing boundary condition

In numerical methods for partial differential equations, Engquist–Majda absorbing boundary conditions or Lindman–Engquist–Majda absorbing boundary conditions are a hierarchy of absorbing boundary conditions for the numerical solution of wave equations. Named after mathematicians Björn Engquist and Andrew Majda, they are designed to allow waves to exit a finite computational domain with minimal artificial reflection through the use of one-way wave equations, essentially making the boundaries transparent to outgoing radiation.

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