1. Equilibrium configurations of point vortices on a sphere

   • K. A. O’Neil

   Research Articles 21 February 2008 Pages: 1 - 8

2. Dynamics of coupled non-identical systems with period-doubling cascade

   • A. P. Kuznetsov
   • I. R. Sataev
   • J. V. Sedova

   Research Articles 21 February 2008 Pages: 9 - 18

3. The commutativity of integrals of motion for quantum spin chains and elliptic functions identities

   • J. Dittrich
   • V. Inozemtsev

   Research Articles 21 February 2008 Pages: 19 - 26

4. On degenerate resonances and “vortex pairs”

   • A. D. Morozov

   Research Articles 21 February 2008 Pages: 27 - 37

5. On the bi-hamiltonian structures for the Goryachev-Chaplygin top

   • A. L. Kostko
   • A. V. Tsiganov

   Research Articles 21 February 2008 Pages: 38 - 45

6. Arnold’s web and diffusion in the Stark-Quadratic-Zeeman problem

   • B. Cordani

   Research Articles 21 February 2008 Pages: 46 - 56

7. New integrable systems with a quartic integral and new generalizations of Kovalevskaya’s and Goriatchev’s cases

   • H. M. Yehia
   • A. A. Elmandouh

   Research Articles 21 February 2008 Pages: 57 - 69