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Isometry Element


Let A be a unital C^*-algebra, then an element u in A is called an isometry if u^*u=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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Isometry Element

Cite this as:

Moslehian, Mohammad Sal. "Isometry Element." From MathWorld--A Wolfram Web Resource, created by Eric W. Weisstein. https://mathworld.wolfram.com/IsometryElement.html

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