Registered users receive a variety of benefits including the ability to customize email alerts, create favorite journals list, and save searches.
Please note that a Project Euclid web account does not automatically grant access to full-text content. An institutional or society member subscription is required to view non-Open Access content.
Contact customer_support@projecteuclid.org with any questions.
View Project Euclid Privacy Policy
Karl-Heinz Fichtner, Wolfgang Freudenberg "Characterization of states of infinite boson systems. I. On the construction of states of boson systems," Communications in Mathematical Physics, Comm. Math. Phys. 137(2), 315-357, (1991)