Unbounded GNS representations of a *-algebra in a Krein space
Antoine, Jean-Pierre;Ota, S.
(1989) Letters in Mathematical Physics : a journal for the rapid dissemination of short contributions in the field of mathematical physics — Vol. 18, n° 4, p. 267-274 (1989)
Antoine, J.-P., & Ota, S. (1989). Unbounded GNS representations of a *-algebra in a Krein space. Letters in Mathematical Physics : a journal for the rapid dissemination of short contributions in the field of mathematical physics, 18(4), 267-274. https://doi.org/10.1007/BF00405258 (Original work published 1989)