regularity properties of the period function near a center of a planar vector field

Applications of lie groups to differential equations

Acta Applicandae Mathematicae · 1990 · 6.1K citations

Natural Sciences, Mathematics, Physics +14

Reduction of Singularities of the Differential Equation Ady = Bdx

A. Seidenberg · American Journal of Mathematics · 1968 · 377 citations

Natural Sciences, Mathematics, Algebra +9

The monotonicity of the period function for planar Hamiltonian vector fields

Carmen Chicone · Journal of Differential Equations · 1987 · 189 citations

Natural Sciences, Mathematics, Dynamical Systems +11

The period in the Lotka-Volterra system is monotonic

Jörg Waldvogel · Journal of Mathematical Analysis and Applications · 1986 · 85 citations

Natural Sciences, Meteorology, Dynamical Systems +4

Ordinary differential equations

V. B. Lidskiĭ · USSR Computational Mathematics and Mathematical Physics · 1964 · 72 citations

Natural Sciences, Mathematics, Differential Equations +6