Flexible affine cones and flexible coverings [article]

Matheusz Michałek, Alexander Perepechko, Hendrik Süß
2016 arXiv   pre-print
We provide a new criterion for flexibility of cones over varieties covered by flexible affine varieties. We apply this criterion to prove flexibility of affine cones over secant varieties of Segre--Veronese embeddings and over certain Fano threefolds. We further prove flexibility of total coordinate spaces of Cox rings of del Pezzo surfaces.
arXiv:1612.01144v1 fatcat:cpb4vefccrhfbjnwhcdrk7sagi