“…Given a grading 1PS λ, let Û denote the semi-direct product U ⋊ λ G m , or Û alternatively. Geometric invariant theory of linearisations of Û on projective varieties were studied in [Bér+18b], [BK17], [BDK17], [Bér+16], [HJ21], with conditions on dimensions of U -stabilisers or conditions on an extension of the U -action to a suitable reductive group.…”