Geodesic
Smoothness of the moduli scheme of instanton vector bundles with~$c_1=0$, $c_2=n$ on~$P^3$
Izvestiya. Mathematics , Tome 35 (1990) no. 1, pp. 233-243

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The scheme $M(P^3,n)$ of moduli of mathematical instanton bundles with Chern classes $c_1=0$, $c_2=n\geqslant1$, is studied on projective space $P^3$ over the field $\mathbf C$. It is proved that $M(P^3,n)$ is a smooth equidimensional scheme of dimension $8n-3$. Bibliography: 7 titles. 
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     title = {Smoothness of the moduli scheme of instanton vector bundles with~$c_1=0$, $c_2=n$ on~$P^3$},
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A. S. Tikhomirov. Smoothness of the moduli scheme of instanton vector bundles with~$c_1=0$, $c_2=n$ on~$P^3$. Izvestiya. Mathematics , Tome 35 (1990) no. 1, pp. 233-243. http://geodesic.mathdoc.fr/item/IM2_1990_35_1_a11/