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
Simon Thomas "On the complexity of the classification problem for torsion-free abelian groups of rank two," Acta Mathematica, Acta Math. 189(2), 287-305, (2002)