Abstract
Let V and V′ be n-dimensional vector spaces. Let also Ω and Ω′ be non-degenerate symplectic forms defined on V and V′, respectively. Denote by Π and Π′ the projective spaces associated with V and V′. We put for the sets of k-dimensional totally isotropic subspaces of Π and Π′. We study mappings of BF03322901 which transfer base subsets to base subsets and show that such mappings are induced by strong embeddings of Π to Π′ if 3k + 3 ≤ n.
Similar content being viewed by others
References
Benz W., Geometrische Transformationen. B.I. Wissenschaftsverlag, Mannheim Leipzig Wien Zürich, 1992.
Chow W. L., On the geometry of algebraic homogeneous spaces, Ann. of Math. 50 (1949) 32–67.
Dieudonné J., La Géométrie des Groupes Classiques, 3rd ed., Springer, Berlin Heidelberg New York, 1971.
Faure C. A., Frölicher A., Morphisms of Projective Geometries and Semilinear maps, Geom. Dedicata, 53 (1994), 237–262.
Havlicek H., A Generalization of Brauner’s Theorem on Linear Mappings, Mitt. Math. Sem. Univ. Gieβen, 215 (1994), 27–41.
Huang W.-L, Kreuzer A., Basis preserving maps of linear spaces, Arch. Math. (Basel) 64(1995), 6, 530–533.
Huang W.-L, Adjacency preserving mappings of invariant subspaces of a null system, Proc. A.M.S. 128, N8 (2000), 2451–2455.
Huang W.-L, Characterization of the transformation group of the space of a Null System, Results Math. 40 (2001), 226–232.
Pankov M., A characterization of geometrical mappings of Grassmann spaces, Results Math. 45(2004), 319–327.
Pankov M., Mappings of the sets of invariant subspaces of null systems, Beiträge Algebra Geom., 45(2004), 389–399.
Pankov M., Base preserving maps in symplectic geometry, submitted to Abh. Math. Sem. Univ. Hamburg.
Pankov M., Prazmovski K., Żynel M., Geometry of polar Grassmann spaces, submitted to Demonstratio Math.
Tits J., Buildings spherical types and finite BN-pairs, Lect. Notes Math. 386, Springer-Verlag, 1974.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Pankov, M. Base subsets in symplectic Grassmannians of small indices. Results. Math. 48, 124–130 (2005). https://doi.org/10.1007/BF03322901
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF03322901