A trace form on an arbitrary algebra 
is a symmetric bilinear form 
such that
 |
for all 
(Schafer 1996, p. 24).
Trace Form
See also
Killing FormExplore with Wolfram|Alpha
References
Schafer, R. D. An Introduction to Nonassociative Algebras. New York: Dover, 1996.Referenced on Wolfram|Alpha
Trace FormCite this as:
Weisstein, Eric W. "Trace Form." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/TraceForm.html