Skip to Main Content

Bulletin of the American Mathematical Society

The Bulletin publishes expository articles on contemporary mathematical research, written in a way that gives insight to mathematicians who may not be experts in the particular topic. The Bulletin also publishes reviews of selected books in mathematics and short articles in the Mathematical Perspectives section, both by invitation only.

ISSN 1088-9485 (online) ISSN 0273-0979 (print)

The 2020 MCQ for Bulletin of the American Mathematical Society is 0.84.

What is MCQ? The Mathematical Citation Quotient (MCQ) measures journal impact by looking at citations over a five-year period. Subscribers to MathSciNet may click through for more detailed information.

 

On the spectrum of general second order operators
HTML articles powered by AMS MathViewer

by M. H. Protter and H. F. Weinberger PDF
Bull. Amer. Math. Soc. 72 (1966), 251-255
References
    1. J. Barta, Sur la vibration fondamentale d’une membrane, C. R. Acad. Sci. Paris 204 (1937), 472-473.
  • R. J. Duffin, Lower bounds for eigenvalues, Phys. Rev. (2) 71 (1947), 827–828. MR 20698
  • Joseph Hersch, Sur la fréquence fondamentale d’une membrane vibrante: évaluations par défaut et principe de maximum, Z. Angew. Math. Phys. 11 (1960), 387–413 (French, with English summary). MR 125319, DOI 10.1007/BF01604498
    • 4. W. W. Hooker, Lower bounds for the first eigenvalue of elliptic equations of orders two and four, Tech. Rep. 10, AF49(638)-398, Univ. of California, Berkeley, California, 1960.
  • M. G. Kreĭn and M. A. Rutman, Linear operators leaving invariant a cone in a Banach space, Uspehi Matem. Nauk (N. S.) 3 (1948), no. 1(23), 3–95 (Russian). MR 0027128
  • M. H. Protter, Lower bounds for the first eigenvalue of elliptic equations, Ann. of Math. (2) 71 (1960), 423–444. MR 111923, DOI 10.2307/1969937
Additional Information
  • Journal: Bull. Amer. Math. Soc. 72 (1966), 251-255
  • DOI: https://doi.org/10.1090/S0002-9904-1966-11485-4
  • MathSciNet review: 0190527