The representation type of Segre varieties

The goal of this work is to prove that all Segre varieties Σn1,…,ns⊆PNΣn1,…,ns⊆PN, N=∏i=1s(ni+1)−1, (unless the quadric surface in P3P3) support families of arbitrarily large dimension and rank of simple Ulrich (and hence ACM ) vector bundles. Therefore, they are of wild representation type.