Results 111 to 120 of about 26,527 (250)
Restricted Grassmannian permutations [PDF]
Enumerative Combinatorics and Applications, 2022 Juan B. Gil, Jessica A. Tomasko
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Description of surfaces associated with Grassmannian sigma models on Minkowski space [PDF]
, 2005 A. M. Grundland, L. Šnobl
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Lines in Quantum Grassmannians [PDF]
Communications in Algebra, 2006 We study quantum lines in quantum grassmannians and prove that there are only finitely many corresponding to lines in usual grassmannians fixed by a maximal torus.
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Geometric Properties of Grassmannian Frames for
EURASIP Journal on Advances in Signal Processing, 2006 Grassmannian frames are frames satisfying a min-max correlation criterion. We translate a geometrically intuitive approach for two- and three-dimensional Euclidean space ( and ) into a new analytic method which is used to classify many Grassmannian ...
Benedetto John J, Kolesar Joseph D
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Vector bundles of finite rank on complete intersections of finite codimension in ind-Grassmannians
Complex Manifolds, 2015 In this article we establish an analogue of the Barth-Van de Ven-Tyurin-Sato theorem.We prove that a finite rank vector bundle on a complete intersection of finite codimension in a linear ind-Grassmannian is isomorphic to a direct sum of line bundles.
Ermakova Svetlana
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Quantum coherence generating power, maximally abelian subalgebras, and Grassmannian geometry [PDF]
, 2018 Paolo Zanardi, Lorenzo Campos Venuti
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Linear embeddings of grassmannians and ind-grassmannians
By a grassmannian we understand a usual complex grassmannian or possibly an orthogonal or symplectic grassmannian. We classify, with few exceptions, linear embeddings of grassmannians into larger grassmannians, where the linearity requirement is the condition that the embedding induces an isomorphism on Picard groups.
Penkov, Ivan, Tsanov, Valdemar
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Journal of AlgebraWe study affine Grassmannians for the exceptional group of type G_2. This group can be given as automorphisms of octonion algebras (or para-octonion algebras). By using this automorphism group, we consider all maximal parahoric subgroups in G_2, and give a description of affine Grassmannians for G_2 as functors classifying suitable orders in a fixed ...
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Incompressibility of orthogonal grassmannians [PDF]
Comptes 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 i is an integer satisfying 1⩽i⩽(dimq)/2). If the degree of each closed point on Q is divisible by 2i and the Witt index of q over the function field of Q ...
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