1. Lagrange’s identity and its generalizations

   • V. V. Kozlov

   Research Articles 18 April 2008 Pages: 71 - 80

2. Noncontinuous maps and Devaney’s chaos

   • M. Kulczycki

   Research Articles 18 April 2008 Pages: 81 - 84

3. Dynamics of perturbed equilateral and collinear configurations of three point vortices

   • A. I. Gudimenko

   Research Articles 18 April 2008 Pages: 85 - 95

4. The dynamics of a rigid body colliding with a rigid surface

   • A. P. Markeev

   Review Articles 18 April 2008 Pages: 96 - 129

5. Kolmogorov’s 1954 paper on nearly-integrable Hamiltonian systems

   • L. Chierchia

   Review Articles 18 April 2008 Pages: 130 - 139