Escobar Ruiz, M.A.; Kalnins, E.G.; Miller Jr., W.; Subag, E.
(Symmetry, Integrability and Geometry: Methods and Applications, 2017)
Quadratic algebras are generalizations of Lie algebras which include the symmetry algebras of 2nd order superintegrable systems in 2 dimensions as special cases. The superintegrable systems are exactly solvable physical ...