Finite-dimensional Lie subalgebras of algebras with continuous inversion

Volume 185 / 2008

Daniel Beltiţă, Karl-Hermann Neeb Studia Mathematica 185 (2008), 249-262 MSC: Primary 22E15; Secondary 22E65, 46H30, 17B30. DOI: 10.4064/sm185-3-3


We investigate the finite-dimensional Lie groups whose points are separated by the continuous homomorphisms into groups of invertible elements of locally convex algebras with continuous inversion that satisfy an appropriate completeness condition. We find that these are precisely the linear Lie groups, that is, the Lie groups which can be faithfully represented as matrix groups. Our method relies on proving that certain finite-dimensional Lie subalgebras of algebras with continuous inversion commute modulo the Jacobson radical.


  • Daniel BeltiţăInstitute of Mathematics “Simion Stoilow”
    of the Romanian Academy
    P.O. Box 1-764
    Bucureşti, Romania
  • Karl-Hermann NeebDepartment of Mathematics
    Darmstadt University of Technology
    Schlossgartenstrasse 7
    D-64289 Darmstadt, Germany

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