@article{51446,
  author       = {{Hilgert, Joachim and Hofmann, K.H.}},
  journal      = {{Math. Scand.}},
  pages        = {{119--144}},
  title        = {{{On the Causal Structure of Homogeneous Manifolds}}},
  volume       = {{67}},
  year         = {{1990}},
}

@article{51448,
  author       = {{Hilgert, Joachim and Hofmann, K.H.}},
  journal      = {{Advances Math.}},
  pages        = {{168--201}},
  title        = {{{Compactly Embedded Cartan Algebras and Invariant Cones in Lie Algebras}}},
  volume       = {{75}},
  year         = {{1989}},
}

@article{51447,
  author       = {{Hilgert, Joachim}},
  journal      = {{Ann. Inst. Fourier}},
  pages        = {{663--688}},
  title        = {{{A Note on Howe's Oscillator Semigroup}}},
  volume       = {{39}},
  year         = {{1989}},
}

@book{51498,
  author       = {{Hilgert, Joachim and Lawson, Jimmie and Hofmann, Karl Heinrich }},
  publisher    = {{Oxford University Press}},
  title        = {{{Lie Groups, Convex Cones, and Semigroups}}},
  year         = {{1989}},
}

@inbook{51485,
  author       = {{Hilgert, Joachim}},
  booktitle    = {{Group Theoretical Methods in Physics}},
  editor       = {{Doebner, H.D.}},
  publisher    = {{Springer}},
  title        = {{{Spectrally Ordered Lie Algebras}}},
  volume       = {{313}},
  year         = {{1988}},
}

@article{51449,
  author       = {{Hilgert, Joachim}},
  journal      = {{Arkiv för mat.}},
  pages        = {{107--115}},
  title        = {{{Invariant Lorentzian Orders on Simply Connected Lie Groups}}},
  volume       = {{26}},
  year         = {{1988}},
}

@article{51450,
  author       = {{Hilgert, Joachim and Hofmann, K.H.}},
  journal      = {{Bull. AMS}},
  pages        = {{441--446}},
  title        = {{{Classification of Invariant Cones in Real Lie Algebras}}},
  volume       = {{11}},
  year         = {{1988}},
}

@article{51451,
  author       = {{Hilgert, Joachim and Hofmann, K.H.}},
  journal      = {{Semigroup Forum 37l. Semigroup Forum}},
  pages        = {{241--252}},
  title        = {{{Invariant Cones in Lie Algebras}}},
  year         = {{1988}},
}

@inbook{51486,
  author       = {{Hilgert, Joachim}},
  booktitle    = {{Probability and Baysian Statistics}},
  editor       = {{Viertl, R.}},
  publisher    = {{Plenum Press}},
  title        = {{{Maximal Semigroups and the Support of Gauss-Semigroups}}},
  year         = {{1987}},
}

@article{51452,
  author       = {{Hilgert, Joachim}},
  journal      = {{Archiv Math.}},
  pages        = {{189--195}},
  title        = {{{Maximal Semigroups and Controllability in Products of Lie Groups}}},
  volume       = {{49}},
  year         = {{1987}},
}

@inbook{51487,
  author       = {{Hilgert, Joachim and Hofmann, K.H.}},
  booktitle    = {{Aspects of Positivity in Functional Analysis}},
  editor       = {{Nagel, R.}},
  publisher    = {{North Holland}},
  title        = {{{Invariant Cones in Real Lie Algebras}}},
  year         = {{1986}},
}

@article{51454,
  author       = {{Hilgert, Joachim}},
  journal      = {{Studia Math.}},
  pages        = {{97--104}},
  title        = {{{The Mayer-Vietoris and the Puppe Sequence in K-Theory for C*-algebras}}},
  volume       = {{83}},
  year         = {{1986}},
}

@article{51453,
  author       = {{Hilgert, Joachim and Hofmann, K.H.}},
  journal      = {{Geom. Dedicata}},
  pages        = {{205--217}},
  title        = {{{On the Automorphism Group of Cones and Wedges}}},
  volume       = {{21}},
  year         = {{1986}},
}

@article{51455,
  author       = {{Hilgert, Joachim and Hofmann, K.H.}},
  journal      = {{J. Funct. Anal.}},
  pages        = {{1--27}},
  title        = {{{On Sophus Lie's Fundamental Theorem}}},
  volume       = {{67}},
  year         = {{1986}},
}

@article{51456,
  author       = {{Hilgert, Joachim and Hofmann, K.H. and Lawson, J.D.}},
  journal      = {{Beiträge Alg. Geom.}},
  pages        = {{185--190}},
  title        = {{{Controllabilty of Systems on Nilpotent Lie Groups}}},
  volume       = {{20}},
  year         = {{1985}},
}

@article{51458,
  author       = {{Hilgert, Joachim and Hofmann, K.H.}},
  journal      = {{Trans. AMS}},
  pages        = {{481--504}},
  title        = {{{Semigroups in Lie Groups, Semialgebras in Lie Algebras}}},
  volume       = {{288}},
  year         = {{1985}},
}

@article{51457,
  author       = {{Hilgert, Joachim and Hofmann, K.H.}},
  journal      = {{Monatshefte Math.}},
  pages        = {{183--210}},
  title        = {{{Lorentzian Cones in Real Lie Algebras}}},
  volume       = {{100}},
  year         = {{1985}},
}

@article{51460,
  author       = {{Hilgert, Joachim and Hofmann, K.H.}},
  journal      = {{Math. Ann.}},
  pages        = {{97--103}},
  title        = {{{Lie Semialgebras are Real Phenomena}}},
  volume       = {{270}},
  year         = {{1985}},
}

@article{51459,
  author       = {{Hilgert, Joachim and Hofmann, K.H.}},
  journal      = {{Manuscripta Math.}},
  pages        = {{17--52}},
  title        = {{{Old and New on SL(2)}}},
  volume       = {{54}},
  year         = {{1985}},
}

@article{51461,
  author       = {{Hilgert, Joachim and Hofmann, K.H.}},
  journal      = {{Semigroup Forum}},
  pages        = {{243--251}},
  title        = {{{Lie Theory of Semigroups}}},
  volume       = {{30}},
  year         = {{1984}},
}