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      <subfield code="a">Campoamor Stursberg, Otto-Rudwig</subfield>
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      <subfield code="c">2008</subfield>
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      <subfield code="a">It is shown that for inhomogeneous Lie algebras having only one Casimir operator, the latter can be explicitly constructed from the Maurer-Cartan equations by means
of wedge products. It is further proved that this constraint imposes sharp bounds for the dimension of the representation R defining the semidirect product. The procedure is generalized to compute also the rational invariant of some Lie algebras</subfield>
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      <subfield code="a">https://hdl.handle.net/20.500.14352/50617</subfield>
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      <subfield code="a">https//doi.org/10.1088/1751-8113/41/36/365207</subfield>
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      <subfield code="a">Casimir operators induced by the Maurer-Cartan equations</subfield>
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