Campoamor Stursberg, Otto-Rudwig2023-06-202023-06-2020050305-447010.1088/0305-4470/38/19/009https://hdl.handle.net/20.500.14352/50698A method is given to determine the Casimir operators of the perfect Lie algebras wsp (N,R) = sp (2N,R)−→⊕Γω1 ⊕Γ0hN and the inhomogeneous Lie algebrasIsp (2N,R) in terms of polynomials associated to a parametrized (2N + 1)×(2N + 1)-matrix. For the inhomogeneous symplectic algebras this matrix is shown to be associated to a faithful representation. The method is extended to other classes of Lie algebras, and some applications to the missing label problem are given.engjournal articlehttps//doi.org/10.1088/0305-4470/38/19/009http://iopscience.iop.org/0305-4470/38/19/009/pdf/0305-4470_38_19_009.pdfopen access512Matemáticas (Matemáticas)12 Matemáticas