Classification and unfoldings of degenerate Hopf bifurcations

Impulses and Physiological States in Theoretical Models of Nerve Membrane

Richard Fitzhugh · Biophysical Journal · 1961 · 6.3K citations

Natural Sciences, Biophysics, Physiology +16

Ordinary Differential Equations.

Ray Redheffer, Jack K. Hale · American Mathematical Monthly · 1971 · 2.2K citations

Smooth functions invariant under the action of a compact lie group

Gerald W. Schwarz · Topology · 1975 · 475 citations

Natural Sciences, Philosophy, Philosophy Of Action +11

ORDINARY DIFFERENTIAL EQUATIONS

J. B. McLeod · Bulletin of the London Mathematical Society · 1969 · 390 citations

Natural Sciences, Mathematics, Differential Equations +6

A theory for imperfect bifurcation via singularity theory

Martin Golubitsky, David J. Schaeffer · Communications on Pure and Applied Mathematics · 1979 · 362 citations

Natural Sciences, Mathematics, Physics +12