 ##  [Transparent Boundary Condition](/transparent-boundary-condition) 

  ##  [Transparent Boundary Condition](https://mathlogic.quantumdictionary.io/transparent-boundary-condition-0) 

  
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- Natural &amp; Formal Sciences -

**Mathematics &amp; Logic Dictionary**

 
Definition

A boundary prescription that exactly matches the exterior solution at the artificial truncation so that outgoing signals pass through the boundary without artificial reflection; often realized by a nonlocal operator (Dirichlet-to-Neumann map) or an analytic absorbing operator tailored to the exterior medium.