Stability of special generalized null correlation bundles on ${\mathbb{P}}^5$

Abstract

In this paper, we study special generalized null correlation bundles on ${\mathbb{P}}^5$. We prove that special generalized null correlation bundles on ${\mathbb{P}}^5$ are stable under some numerical conditions. Moreover, we prove that the closure of the subvariety parametrizing stable special generalized null correlation bundles is an irreducible component of the moduli space of rank $4$ stable vector bundles with corresponding Chern classes on ${\mathbb{P}}^5$. As an application, we prove that the number of irreducible components of moduli space of rank $4$ stable vector bundles on ${\mathbb{P}}^5$ with some fixed Chern classes can be arbitrarily high.

Largely rewritten. We focus on P^5 case in this version of the paper