Skip to Main Content

Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

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.

 

Some applications of the Euler-Jacobi formula to differential equations
HTML articles powered by AMS MathViewer

by Anna Cima, Armengol Gasull and Francesc Mañosas PDF
Proc. Amer. Math. Soc. 118 (1993), 151-163 Request permission

Abstract:

The Euler-Jacobi formula gives an algebraic relation between the critical points of a vector field and their indices. Using this formula we obtain an upper bound for the number of centers that a planar polynomial differential equation can have and study the distribution of the critical points for planar quadratic and cubic differential equations.
References
Similar Articles
  • Retrieve articles in Proceedings of the American Mathematical Society with MSC: 58F21, 34C05
  • Retrieve articles in all journals with MSC: 58F21, 34C05
Additional Information
  • © Copyright 1993 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 118 (1993), 151-163
  • MSC: Primary 58F21; Secondary 34C05
  • DOI: https://doi.org/10.1090/S0002-9939-1993-1150647-9
  • MathSciNet review: 1150647