Newton's versus Halley's Method: a Dynamical Systems Approach. - Gareth E. Roberts; Jeremy Horgan-Kobelski (Int. J. Bifurc. Chaos, 2004)

Stability of Relative Equilibria in the Planar n-Vortex Problem. - Gareth E. Roberts (SIAM J. Appl. Dyn. Syst., 2013)

Relative Equilibria in the Four-Vortex Problem with Two Pairs of Equal Vorticities. - Marshall Hampton; Gareth E. Roberts; Manuele Santoprete (J. Nonlinear Sci., 2014)

Existence and Stability of Four-Vortex Collinear Relative Equilibria with Three Equal Vorticities. - Brian Menezes; Gareth E. Roberts (SIAM J. Appl. Dyn. Syst., 2018)