The unitary group is the set of unitary matrices.
Unitary Group
See also
Lie-Type Group, Unitary MatrixExplore with Wolfram|Alpha
References
Wilson, R. A. "ATLAS of Finite Group Representation." http://brauer.maths.qmul.ac.uk/Atlas/v3/clas/.Referenced on Wolfram|Alpha
Unitary GroupCite this as:
Weisstein, Eric W. "Unitary Group." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/UnitaryGroup.html