Stratification of moduli spaces of instantons on the Segre product of three lines via 't Hooft bundles

Vincenzo Antonelli, Francesco Malaspina

Let $X$ be the Segre product of three projective lines. For a fixed effective divisor $D$ on $X$, we introduce the notions of $D$-'t Hooft, $(D_i,D_j)$-special and $D$-sectional sp…