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Framed instanton pairs on the blow-up of the projective 3-space at a point
Abdelmoubine Amar Henni
We study some Huybrechts and Lehn framed sheaves on the Fano 3-fold given by blowing-up the 3-projective space at a point. In contrast with the cases of curves and surfaces, there…
Torsion free instanton sheaves on the blow-up of at a point
Abdelmoubine Amar Henni
We define the analogue of instanton sheaves on the blow-up of the dimensional projective space at a point. We choose appropriate polarisation on $\wi…
Torsion free instanton sheaves on the blow-up of at a point
Abdelmoubine Amar Henni
We consider an extension of the instanton bundles definition, given by Casnati-Coskun-Genk-Malaspina, for Fano threefolds, in order to include non locally-free ones on the blow-up…
On the fixed locus of framed instanton sheaves on
Abdelmoubine Amar Henni
Let be the three dimensional torus acting on and be the fixed locus of the corresponding action on the…
A note on the ADHM description of Quot schemes of points on affine spaces
Abdelmoubine Amar Henni, Douglas M. Guimarães
We give an ADHM description of the Quot scheme of points of length and rank on affine spaces which naturally extends bo…