Ba·nach algebra
 \ ˈbäˌnäk, nək, ˌnäḵ, nəḵ \
Definition of Banach algebra
: a linear algebra over the field of real or complex numbers that is also a Banach space for which the norm of the product of x and y is less than or equal to the product of the norm of x and the norm of y for all x and y belonging to it
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Time Traveler for Banach algebra
The first known use of Banach algebra was in 1944
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