ADHM construction of perverse instanton sheaves

Details ADHM construction of perverse instanton sheaves ADHM construction of perverse instanton sheaves

2012-01-26

arxiv.org/abs/1201.5657v1

Mathematics

Algebraic Geometry

33 pages

Scientific paper

We present a construction of framed torsion free instanton sheaves on a projective variety containing a fixed line which further generalizes the one on projective spaces. This is done by generalizing the so called ADHM variety. We show that the moduli space of such objects is a quasi projective variety, which is fine in the case of projective spaces. We also give an ADHM categorical description of perverse instanton sheaves in the general case, along with a hypercohomological characterization of these sheaves in the particular case of projective spaces.

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