Title: ON A q-FOCK SPACE AND ITS UNITARY DECOMPOSITION
Abstract: A Fock representation of q-commutation relation is studied by constructing a q-Fock space as the space of the representation, the q-creation and q-annihilation operators (-1 < q < 1). In the case of 0 < q < 1, the q-Fock space is interpolated between the Boson Fock space and the full Fock space. Also, a unitary decomposition of the q-Fock space <TEX>$(q\;{\neq}\;0)$</TEX> is studied.