Campoamor Stursberg, Otto-Rudwig2023-06-202023-06-2020020305-4470https://hdl.handle.net/20.500.14352/58589The invariants of all complex solvable rigid Lie algebras up to dimension eight are computed. Moreover we show, for rank one solvable algebras, some criteria to deduce to non-existence of non-trivial invariants or the existence of fundamental sets of invariants formed by rational functions of the Casimir invariants of the associated nilradical.engjournal articlehttp://iopscience.iop.org/0305-4470/35/30/307/pdf/0305-4470_35_30_307.pdfhttp://iopscience.iop.org/open access512Álgebra1201 Álgebra