Structurally stable discontinuous vector fields in the plane

Structural stability on two-dimensional manifolds

M. M. Peixoto · Topology · 1962 · 564 citations

Natural Sciences, Mathematics, Dynamical Systems +12

A survey of quadratic systems

W. A. Coppel · Journal of Differential Equations · 1966 · 277 citations

Natural Sciences, Computer Science, Mathematics +11

The Four-or-More Vertex Theorem

Robert Osserman · American Mathematical Monthly · 1985 · 39 citations

Natural Sciences, Mathematics, Geometry +7

Vertices of plane curves

S. B. Jackson · Bulletin of the American Mathematical Society · 1944 · 35 citations · Full text

Computing, Computer Science, Computational Geometry +4

Extended minimum-number theorems of cyclic and sextactic points on a plane convex oval

S. Mukhopadhaya · Mathematische Zeitschrift · 1931 · 15 citations

Natural Sciences, Computer Science, Mathematics +9