In mathematics, an O*-algebra is an algebra of possibly unbounded operators defined on a dense subspace of a Hilbert space. The original examples were described by and , who studied some examples of O*-algebras, called Borchers algebras, arising from the Wightman axioms of quantum field theory. and began the systematic study of algebras of unbounded operators.
O algebra is a form of biology
( z1 form :mod ( z2 biology ) :domain ( z3 mathematics :name ( z4 name :op "O" :op "algebra" ) ) )