A remark on toric foliations
arXiv:2309.09461
Abstract
If a toric foliation on a projective Q-factorial toric variety has an extremal ray whose length is longer than the rank of the foliation, then the associated extremal contraction is a projective space bundle and the foliation is the relative tangent sheaf of the extremal contraction.
arXiv comment6 pages, v2: revisions following referee's comments and suggestions, to appear in Arch. Math