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
Jun Ling "A lower bound for the gap between the first two eigenvalues of Schrödinger operators on convex domains in $S^n$ or ${\bf R}^n$.," Michigan Mathematical Journal, Michigan Math. J. 40(2), 259-270, (1993)
