Hilgert, J. (1987). Maximal Semigroups and Controllability in Products of Lie Groups. Archiv Math., 49, 189–195.
LibreCat: /record/51452

Hilgert, J., &; Hofmann, K. H. (1986). Invariant Cones in Real Lie Algebras. In R. Nagel &; et al. (Eds.), Aspects of Positivity in Functional Analysis. North Holland.
LibreCat: /record/51487

Hilgert, J. (1986). The Mayer-Vietoris and the Puppe Sequence in K-Theory for C*-algebras. Studia Math., 83, 97–104.
LibreCat: /record/51454

Hilgert, J., &; Hofmann, K. H. (1986). On the Automorphism Group of Cones and Wedges. Geom. Dedicata, 21, 205–217.
LibreCat: /record/51453

Hilgert, J., &; Hofmann, K. H. (1986). On Sophus Lie’s Fundamental Theorem. J. Funct. Anal., 67, 1–27.
LibreCat: /record/51455

Hilgert, J., Hofmann, K. H., &; Lawson, J. D. (1985). Controllabilty of Systems on Nilpotent Lie Groups. Beiträge Alg. Geom., 20, 185–190.
LibreCat: /record/51456

Hilgert, J., &; Hofmann, K. H. (1985). Semigroups in Lie Groups, Semialgebras in Lie Algebras. Trans. AMS, 288, 481–504.
LibreCat: /record/51458

Hilgert, J., &; Hofmann, K. H. (1985). Lorentzian Cones in Real Lie Algebras. Monatshefte Math., 100, 183–210.
LibreCat: /record/51457

Hilgert, J., &; Hofmann, K. H. (1985). Lie Semialgebras are Real Phenomena. Math. Ann., 270, 97–103.
LibreCat: /record/51460

Hilgert, J., &; Hofmann, K. H. (1985). Old and New on SL(2). Manuscripta Math., 54, 17–52.
LibreCat: /record/51459

Hilgert, J., &; Hofmann, K. H. (1984). Lie Theory of Semigroups. Semigroup Forum, 30, 243–251.
LibreCat: /record/51461