Continuous and discrete (classical) Heisenberg spin chain revised. Ragnisco, Orlando; Zullo, Federico — 2007 SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
From 𝔰𝔲 ( 2 ) Gaudin models to integrable tops. Petrera, Matteo; Ragnisco, Orlando — 2007 SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
Bäcklund transformations for the trigonometric Gaudin magnet. Ragnisco, Orlando; Zullo, Federico — 2010 SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
A family of exactly solvable radial quantum systems on space of non-constant curvature with accidental degeneracy in the spectrum. Ragnisco, Orlando; Riglioni, Danilo — 2010 SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
Bäcklund transformations for the Kirchhoff top. Ragnisco, Orlando; Zullo, Federico — 2011 SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
Quantum deformations and superintegrable motions on spaces with variable curvature. Ragnisco, Orlando; Ballesteros, Ángel; Herranz, Francisco J.; Musso, Fabio — 2007 SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
Superintegrable oscillator and Kepler systems on spaces of nonconstant curvature via the Stäckel transform. Ballesteros, Ángel; Enciso, Alberto; Herranz, Francisco J.; Ragnisco, Orlando; Riglioni, Danilo — 2011 SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]