Hilgert, J. (1991). Group Theoretical Aspects of Gödels Model. In J. Hilgert (Ed.), Jahrbuch der Gödel Gesellschaft.
LibreCat: /record/51483

Hilgert, J. (1991). Infinitesimally Generated Subsemigroups of Motion Groups. Rocky Mount. J. Math., 21, 865–878.
LibreCat: /record/51444

Hilgert, J., &; Neeb, K.-H. (Eds.). (1991). Lie-Gruppen und Lie-Algebren. Vieweg Verlag.
LibreCat: /record/51497

Hilgert, J. (1991). Onishchik, A.L., und E.B. Vinberg. Lie Groups and Algebraic Groups (Springer, New York, 1990). In Zentralblatt (Vol. 722).
LibreCat: /record/51586

Rösler, M. (1991). On optimal linear mean estimators for weakly stationary stochastic processes. Orthogonal Polynomials and Their Applications (Erice, 1990), 373–378.
LibreCat: /record/40656

Hilgert, J. (1990). Applications of Lie Semigroups in Analysis. In K. H. Hofmann &; et al. (Eds.), The Analytical and Topological Theory of Semigroups. De Gruyter.
LibreCat: /record/51484

Hilgert, J., &; Hofmann, K. H. (1990). On the Causal Structure of Homogeneous Manifolds. Math. Scand., 67, 119–144.
LibreCat: /record/51446

Dellnitz, M., &; Werner, B. (1989). Computational methods for bifurcation problems with symmetries—with special attention to steady state and Hopf bifurcation points. Journal of Computational and Applied Mathematics, 97–123.https://doi.org/10.1016/0377-0427(89)90150-7 
LibreCat: /record/16682
DOI: 10.1016/0377-0427(89)90150-7

Hilgert, J., &; Hofmann, K. H. (1989). Compactly Embedded Cartan Algebras and Invariant Cones in Lie Algebras. Advances Math., 75, 168–201.
LibreCat: /record/51448

Hilgert, J. (1989). A Note on Howe’s Oscillator Semigroup. Ann. Inst. Fourier, 39, 663–688.
LibreCat: /record/51447

Hilgert, J., Hofmann, K. H., &; Lawson, J. D. (Eds.). (1989). Lie Groups, Convex Cones, and Semigroups. Oxford University Press.
LibreCat: /record/51498

Hilgert, J. (1988). Spectrally Ordered Lie Algebras. In H. D. Doebner &; et al. (Eds.), Group Theoretical Methods in Physics (Vol. 313). Springer.
LibreCat: /record/51485

Hilgert, J. (1988). Invariant Lorentzian Orders on Simply Connected Lie Groups. Arkiv För Mat., 26, 107–115.
LibreCat: /record/51449

Hilgert, J., &; Hofmann, K. H. (1988). Classification of Invariant Cones in Real Lie Algebras. Bull. AMS, 11, 441–446.
LibreCat: /record/51450

Hilgert, J., &; Hofmann, K. H. (1988). Invariant Cones in Lie Algebras. Semigroup Forum 37l. Semigroup Forum, 241–252.
LibreCat: /record/51451

Hilgert, J. (1987). Maximal Semigroups and the Support of Gauss-Semigroups. In R. Viertl (Ed.), Probability and Baysian Statistics. Plenum Press.
LibreCat: /record/51486

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