# Killing tensor

{{ safesubst:#invoke:Unsubst||$N=Unreferenced |date=__DATE__ |$B= {{#invoke:Message box|ambox}} }} A Killing tensor, named after Wilhelm Killing, is a symmetric tensor, known in the theory of general relativity, ${\displaystyle K}$ that satisfies
${\displaystyle \nabla _{(\alpha }K_{\beta \gamma )}=0\,}$