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Base subsets in symplectic Grassmannians of small indices

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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.

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Correspondence to Mark Pankov.

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Pankov, M. Base subsets in symplectic Grassmannians of small indices. Results. Math. 48, 124–130 (2005). https://doi.org/10.1007/BF03322901

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