New moduli components of rank 2 bundles on projective space

We present a new family of monads whose cohomology is a stable rank 2 vector bundle on P-3. We also study the irreducibility and smoothness together with a geometrical description of some of these families. These facts are used to construct a new infinite series of rational moduli components of stab...

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Veröffentlicht in:Sbornik. Mathematics 2021-11, Vol.212 (11), p.1503-1552
Hauptverfasser: Almeida, C., Jardim, M., Tikhomirov, A. S., Tikhomirov, S. A.
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Sprache:eng
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Zusammenfassung:We present a new family of monads whose cohomology is a stable rank 2 vector bundle on P-3. We also study the irreducibility and smoothness together with a geometrical description of some of these families. These facts are used to construct a new infinite series of rational moduli components of stable rank 2 vector bundles with trivial determinant and growing second Chern class. We also prove that the moduli space of stable rank 2 vector bundles with trivial determinant and second Chern class equal to 5 has exactly three irreducible rational components.
ISSN:1064-5616
1468-4802
DOI:10.1070/SM9490