Fuglede−Kadison_determinant
In mathematics, the Fuglede−Kadison determinant of an invertible operator in a finite factor is a positive real number associated with it. It defines a multiplicative homomorphism from the set of invertible operators to the set of positive real numbers. The Fuglede−Kadison determinant of an operator is often denoted by .
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For a matrix in , which is the normalized form of the absolute value of the determinant of .