Results 121 to 130 of about 3,252 (223)

Incompressibility of orthogonal grassmannians [PDF]

open access: yesComptes Rendus. Mathématique, 2011
We prove the following conjecture due to Bryant Mathews (2008). Let Q be the orthogonal grassmannian of totally isotropic i -planes of a non-degenerate quadratic form q over an arbitrary field (where
openaire   +3 more sources

On the nonexistence of certain morphisms from Grassmannian to Grassmannian in characteristic $0$

open access: yesDocumenta Mathematica, 2009
This paper proves some properties of the big Chern classes of a vector bundle on a smooth scheme over a field of characteristic 0. These properties together with the explicit computation of the big Chern classes of universal quotient bundles of Grassmannians are used to prove the main Theorems (Theorems 1,2 and 3) of this paper ...
openaire   +2 more sources

Perverse Sheaves on Grassmannians [PDF]

open access: yesCanadian Journal of Mathematics, 2002
AbstractWe compute the category of perverse sheaves on Hermitian symmetric spaces in types A and D, constructible with respect to the Schubert stratification. The calculation is microlocal, and uses the action of the Borel group to study the geometry of the conormal variety Λ.
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Geometry of the Dual Grassmannian.

open access: yes, 2011
Geometry of the Dual ...
Richard Abdelkerim (7937015)
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FINITE GRASSMANNIAN GEOMETRIES

open access: yesDemonstratio Mathematica, 2001
The author studies geometries in a vector space \(V \cong {\mathbb F}_{q}^{n}\) with odd \(q\) which is provided with a non-degenerate bilinear form \(\xi\). The set \(\{U \leq V \mid \dim U = k\}\) is denoted by \({\mathfrak L}_k(V)\). The Grassmann space \({\mathbb G}_{k,m}(V)\) is the incidence structure \(({\mathfrak L}_k(V),{\mathfrak L}_m(V),\leq)
openaire   +2 more sources

Group-Wise Hub Identification by Learning Common Graph Embeddings on Grassmannian Manifold. [PDF]

open access: yesIEEE Trans Pattern Anal Mach Intell, 2022
Yang D   +6 more
europepmc   +1 more source

Grassmannian manifolfd

open access: yes, 2019
RESUMEN: En este trabajo introduciremos la variedad de Grassmann o Grassmanniana y la veremos desde distintos puntos de vista de las Matemáticas.
Garcés Sandoval, Mauricio André
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On Tensor-Product Structures and Grassmannian Structures [PDF]

open access: yes, 1970
As it was shown by several authors, the tangent bundle of a Grassmann manifold is a tensor product of two certain vector bundles. On the other hand, Th.
1019   +5 more
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