Dessai, AnandDépartement de Mathématiques, Université de Fribourg, Switzerland
Wiemeler, MichaelInstitut für Mathematik, Universität Augsburg, Germany
20.02.2017
Published in:
Transformation Groups. - 2017, p. 1–26
English
We give the diffeomorphism classification of complete intersections with S1-symmetry in dimension ≤ 6. In particular, we show that a 6-dimensional complete intersection admits a smooth non-trivial S1-action if and only if it is diffeomorphic to the complex projective space or the quadric. We also prove that in any odd complex dimension only finitely many complete intersections can carry a smooth effective action by a torus of rank > 1.