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Proof of the radical conjecture for homogeneous Kähler manifolds

Published online by Cambridge University Press:  22 January 2016

Josef Dorfmeister*
Affiliation:
Department of Mathematics, University of Kansas Lawrence, Kansas 6604-5, U.S.A.
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In 1967 Gindikin and Vinberg stated the Fundamental Conjecture for homogeneous Kähler manifolds. It (roughly) states that every homogeneous Kähler manifold is a fiber space over a bounded homogeneous domain for which the fibers are a product of a flat with a simply connected compact homogeneous Kähler manifold. This conjecture has been proven in a number of cases (see [6] for a recent survey). In particular, it holds if the homogeneous Kähler manifold admits a reductive or an arbitrary solvable transitive group of automorphisms [5]. It is thus tempting to think about the general case. It is natural to expect that lack of knowledge about the radical of a transitive group G of automorphisms of a homogeneous Kähler manifold M is the main obstruction to a proof of the Fundamental Conjecture for M. Thus it is of importance to consider the Kähler algebra generated by the radical of the Lie algebra of G. Computations in this context suggest that one rather considers Kähler algebras generated by an arbitrary solvable ideal.

Type
Research Article
Copyright
Copyright © Editorial Board of Nagoya Mathematical Journal 1989

References

Literature

[1] Azencott, R., Wilson, E. N., Homogeneous manifolds with negative curvature I, Trans. Amer. Math. Soc, 215 (1976), 373362.Google Scholar
[2] Bourbaki, N., Groupes et algebres de Lie, chap. I, Actualités Scientifiques et industrielles 1285, Hermann, Paris 1971.Google Scholar
[3] Chevalley, C., Théorie des groupes de Lie, Hermann, Paris, 1968.Google Scholar
[4] D’Atri, J. E., Dorfmeister, J., da, Zhao Yan, The isotropy representation for homogeneous Siegel domains, Pacific J. Math., 120 (1985), 295326.Google Scholar
[5] Dorfmeister, J., Homogeneous Kahler manifolds admitting a transitive solvable group of automorphisms, Ann. scient. Ec. Norm. Sup., 18 (1985), 143180.Google Scholar
[6] Dorfmeister, J., The Radical Conjecture for Homogeneous Kähler Manifolds, in CMS Conference Proceedings, Vol. 5 (1986), 189208.Google Scholar
[7] Gindikin, S. G., Piatetskii-Shapiro, I. I., Vinberg, E. B., Homogeneous Kähler manifolds, in “Geometry of homogeneous bounded domains”, CIME, Italy, 1967.Google Scholar
[8] Gindikin, S. G., Piatetskii-Shapiro, I. I., Vinberg, E. B., On the classification and canonical realization of homogeneous bounded domains, Trans. Moscow Math. Soc, 12 (1963), 404437.Google Scholar
[9] Nakajima, K., Homogeneous hyperbolic manifolds and homogeneous Siegel domains, J. Math. Kyoto Univ., 25 (1985), 269291.Google Scholar
[10] Nakajima, K., On J-algebras and homogeneous Kähler manifolds, Hokkaido Math. J., 15 (1986), 120.Google Scholar
[11] Kuhn, O., Rosendahl, A., Wedderburnzerlegung für Jordan-Paare, Manuscripta math., 24 (1978), 403435.Google Scholar
[12] Neher, E., Cartan—Involutionen von halbeinfachen reellen Jordan-Tripelsystemen, Math. Z., 169 (1979), 271292.Google Scholar
[13] Neher, E., Klassifikation der einfachen reellen speziellen Jordan-Tripelsysteme, Manuscripta math., 31 (1980), 197215.Google Scholar
[14] Neher, E., Jordan triple systems with completely reducible derivation or structure algebras, Pacific J. Math., 113 (1984), 137164.Google Scholar
[15] Neher, E., Jordan triple systems by the Grid approach, Lecture Notes in Math., 1280, Springer Verlag.Google Scholar
[16] Oniscik, A. L., Inclusion relations among transitive compact transformation groups, Amer. Math. Soc. Translations, Ser. 2, 50 (1966), 558.Google Scholar
[17] Vinberg, E. B., The structure of the group of automorphisms of a homogeneous convex cone, Trans. Moscow Math. Soc, 13 (1965), 6393.Google Scholar