We give a geometric description of singular pencils of quadrics of constant rank, relating them to the splitting type of some naturally associated vector bundles on P^1. Then we study their orbits in the Grassmannian of lines, under the natural action of the general linear group.

Pencils of singular quadrics of constant rank and their orbits / Boralevi, Ada; Mezzetti, Emilia. - In: RENDICONTI DELL'ISTITUTO DI MATEMATICA DELL'UNIVERSITÀ DI TRIESTE. - ISSN 0049-4704. - 54:Section 3(2022). [10.13137/2464-8728/34102]

Pencils of singular quadrics of constant rank and their orbits

Ada Boralevi;Emilia Mezzetti
2022

Abstract

We give a geometric description of singular pencils of quadrics of constant rank, relating them to the splitting type of some naturally associated vector bundles on P^1. Then we study their orbits in the Grassmannian of lines, under the natural action of the general linear group.
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Descrizione: Pencils of singular quadrics of constant rank and their orbits
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2985180