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Co-Isometry

Let A be a unital C^*-algebra, then an element u in A is called co-isometry if uu^*=1.

This entry contributed by Mohammad Sal Moslehian

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References

Murphy, G. J. C*-Algebras and Operator Theory. New York: Academic Press, 1990.

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Co-Isometry

Cite this as:

Weisstein, Eric W., with contributions by Mohammad Sal Moslehian. "Co-Isometry." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Co-Isometry.html

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