multiplicative identity

multiplicative identity

[‚məl·tə′plik·əd·iv ī′den·əd·ē]
(mathematics)
In a mathematical system with an operation of multiplication, denoted ×, an element 1 such that 1 × e = e × 1 = e for any element e in the system.
References in periodicals archive ?
alpha]] G has a multiplicative identity if and only if ob(G) is finite; in that case the multiplicative identity is [[summation].
alpha]] G has a multiplicative identity; in that case the multiplicative identity is [[summation].