Abstract
We classify compact homogeneous geometries of irreducible spherical type and rank at least 2 which admit a transitive action of a compact connected group, up to equivariant 2-coverings. We apply our classification to polar actions on compact symmetric spaces.
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Change history
17 April 2019
We correct an error in our article [6], completing the classification of compact homogeneous geometries.
17 April 2019
We correct an error in our article [6], completing the classification of compact homogeneous geometries.
References
M. Aschbacher, Finite geometries of type C 3 with flag-transitive groups, Geom. Dedicata 16 (1984), no. 2, 195–200.
A. Berenstein, M. Kapovich, Affine buildings for dihedral groups, Geom. Dedicata 156 (2012), 171–207.
A. Borel, J. Tits, Homomorphismes “abstraits” de groupes algébriques simples, Ann. of Math. (2) 97 (1973), 499–571.
G. E. Bredon, Introduction to Compact Transformation Groups, Academic Press, New York, 1972. Russian transl.: Г. Брeдон, Введение в теорю ком-пактных групп преобразований, Наука, M., 1980.
M. R. Bridson, A. Haefliger, Metric Spaces of Non-positive Curvature, Grundlehren der Mathematischen Wissenschaften, Bd. 319, Springer, Berlin, 1999.
R. F. Brown, The Lefschetz Fixed Point Theorem, Scott, Foresman and Co., Glenview, IL, 1971.
F. Buekenhout, Foundations of incidence geometry, in: Handbook of Incidence Geometry, North-Holland, Amsterdam, 1995, pp. 63–105.
F. Buekenhout, A. Pasini, Finite diagram geometries extending buildings, in: Handbook of Incidence Geometry, North-Holland, Amsterdam, 1995, pp. 1143–1254.
K. Burns, R. Spatzier, On topological Tits buildings and their classification, Inst. Hautes Études Sci. Publ. Math. 65 (1987), 5–34.
É. Cartan, Sur des familles remarquables d’hypersurfaces isoparamétriques dans les espaces sphériques, Math. Z. 45 (1939), 335–367.
S. Console, C. Olmos, Clifford systems, algebraically constant second fundamental form and isoparametric hypersurfaces, Manuscr. Math. 97 (1998), no. 3, 335–342.
J. Dadok, Polar coordinates induced by actions of compact Lie groups, Trans. Amer. Math. Soc. 288 (1985), no. 1, 125–137.
M. Dominguez-Vazquez, Isoparametric foliations on complex projective spaces, arXiv:1204.3428v1 [math.DG] (2012).
P. B. Eberlein, Geometry of Nonpositively Curved Manifolds, University of Chicago Press, Chicago, 1996.
J.-H. Eschenburg, E. Heintze, Polar representations and symmetric spaces, J. Reine Angew. Math. 507 (1999), 93–106.
J.-H. Eschenburg, E. Heintze, On the classification of polar representations, Math. Z. 232 (1999), no. 3, 391–398.
F. Fang, K. Grove, G. Thorbergsson, Tits geometry and positive curvature, preprint (2012).
H. Freudenthal, Die Topologie der Lieschen Gruppen als algebraisches Phänomen. I, Ann. of Math. (2) 42 (1941), 1051–1074.
H. Freudenthal, Oktaven, Ausnahmegruppen und Oktavengeometrie, Geom. Dedicata 19 (1985), no. 1, 7–63.
T. Grundhöfer, N. Knarr, L. Kramer, Flag-homogeneous compact connected polygons, Geom. Dedicata 55 (1995), no. 1, 95–114.
T. Grundhöfer, N. Knarr, L. Kramer, Flag-homogeneous compact connected polygons II, Geom. Dedicata 83 (2000), no. 1–3, 1–29.
T. Grundhöfer, L. Kramer, H. Van Maldeghem, R. M. Weiss, Compact totally disconnected Moufang buildings, Tohoku Math. J. (2) 64 (2012), no. 3, 333–360.
S. Helgason, Differential Geometry, Lie Groups, and Symmetric Spaces, corrected reprint of the 1978 original, Graduate Studies in Mathematics, Vol. 34, Amer. Math. Soc., Providence, RI, 2001.
J. Hilgert, K.-H. Neeb, Structure and Geometry of Lie Groups, Springer Monographs in Mathematics, Springer, New York, 2012.
K. H. Hofmann, S. A. Morris, The Structure of Compact Groups, de Gruyter Studies in Mathematics, Vol. 25, de Gruyter, Berlin, 1998.
W. Hsiang, H. B. Lawson, Jr., Minimal submanifolds of low cohomogeneity, J. Differential Geometry 5 (1971), 1–38.
J. E. Humphreys, Reflection Groups and Coxeter Groups, Cambridge Studies in Advanced Mathematics, Vol. 29, Cambridge Univ. Press, Cambridge, 1990.
H. Karcher, A geometric classification of positively curved symmetric spaces and the isoparametric construction of the Cayley plane, Astérisque 163–164 (1988), 6, 111–135, 282 (1989).
N. Knarr, The nonexistence of certain topological polygons, Forum Math. 2 (1990), no. 6, 603–612.
N. Knarr, L. Kramer, Projective planes and isoparametric hypersurfaces, Geom. Dedicata 58 (1995), no. 2, 193–202.
A. Kolmogoroff, Zur Begründung der projektiven Geometrie, Ann. of Math. (2) 33 (1932), no. 1, 175–176.
A. Kollross, Polar actions on symmetric spaces, J. Differential Geom. 77 (2007), no. 3, 425–482.
A. Kollross, A. Lytchak, Polar actions on symmetric spaces of higher rank, Bull. Lond. Math. Soc. 45 (2013), no. 2, 341–350.
L. Kramer, Compact Polygons, Dissertation, Math. Fak. Univ. Tübingen, 1994, arXiv:math/0104064.
L. Kramer, Holomorphic polygons, Math. Z. 223 (1996), no. 2, 333–341.
L. Kramer, Homogeneous Spaces, Tits Buildings, and Isoparametric Hypersurfaces, Mem. Amer. Math. Soc. 158 (2002), no. 752.
L. Kramer, Loop groups and twin buildings, Geom. Dedicata 92 (2002), 145–178.
L. Kramer, Two-transitive Lie groups, J. Reine Angew. Math. 563 (2003), 83–113.
L. Kramer, The topology of a semisimple Lie group is essentially unique, Adv. Math. 228 (2011), no. 5, 2623–2633.
A. Lytchak, Polar foliations on symmetric spaces, to appear in Geom. Functional Analysis, arXiv:1204.2923v2 [math.DG] (2011).
W. S. Massey, A Basic Course in Algebraic Topology, Graduate Texts in Mathematics, Vol. 127, Springer, New York, 1991.
J. W. Milnor, Topology from the Differentiable Viewpoint, Based on notes by David W. Weaver, The University Press of Virginia, Charlottesville, VA, 1965.
S. A. Mitchell, Quillen’s theorem on buildings and the loops on a symmetric space, Enseign. Math. (2) 34 (1988), no. 1–2, 123–166.
A. Neumaier, Some sporadic geometries related to PG(3, 2), Arch. Math. (Basel) 42 (1984), no. 1, 89–96.
A. L. Onishchik, Topology of Transitive Transformation Groups, Johann Ambrosius Barth, Leipzig, 1994.
A. Pasini, Diagram Geometries, Oxford Science Publications, Oxford Univ. Press, New York, 1994.
F. Podestà, G. Thorbergsson, Polar actions on rank-one symmetric spaces, J. Diff. Geom. 53 (1999), no. 1, 131–175.
H. Salzmann, Homogene kompakte projektive Ebenen, Pacific J. Math. 60 (1975), no. 2, 217–234.
H. Salzmann, D. Betten, T. Grundhöfer, H Hähl, R. Löwen, M. Stroppel, Compact Projective Planes, de Gruyter Expositions in Mathematics, Vol. 21, de Gruyter, Berlin, 1995.
E. Straume, Compact connected Lie transformation groups on spheres with low cohomogeneity. I, Mem. Amer. Math. Soc. 119 (1996), no. 569.
G. Thorbergsson, Isoparametric foliations and their buildings, Ann. of Math. (2) 133 (1991), no. 2, 429–446.
J. Tits, Buildings of Spherical Type and Finite BN-Pairs, Lecture Notes in Mathematics, Vol. 386, Springer, Berlin, 1974.
J. Tits, A local approach to buildings, in: The Geometric Vein, Springer, New York, 1981, pp. 519–547.
J. Tits, Ensembles ordonnés, immeubles et sommes amalgamées, Bull. Soc. Math. Belg. Sér. A 38 (1986), 367–387 (1987).
J. Tits, R. M. Weiss, Moufang Polygons, Springer Monographs in Mathematics, Springer, Berlin, 2002.
G. Warner, Harmonic Analysis on Semi-simple Lie Groups. I, Springer, New York, 1972.
R. M. Weiss, The structure of Spherical Buildings, Princeton Univ. Press, Princeton, NJ, 2003.
G. W. Whitehead, Elements of Homotopy Theory, Graduate Texts in Mathematics, Vol. 61, Springer, New York, 1978.
B. Wilking, A duality theorem for Riemannian foliations in nonnegative sectional curvature, Geom. Funct. Anal. 17 (2007), no. 4, 1297–1320.
S. Yoshiara, The flag-transitive C 3 -geometries of finite order, J. Algebraic Combin. 5 (1996), no. 3, 251–284.
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*Supported by the SFB 878 ‘Groups, Geometry and Actions’.
**Supported by a Heisenberg Fellowship.
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KRAMER, L., LYTCHAK, A. HOMOGENEOUS COMPACT GEOMETRIES. Transformation Groups 19, 793–852 (2014). https://doi.org/10.1007/s00031-014-9278-5
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DOI: https://doi.org/10.1007/s00031-014-9278-5