"Cohomogeneity one Kähler-Ricci solitons under a Heisenberg group actio" by G. Maschler and Robert Ream
 

Mathematics

Cohomogeneity one Kähler-Ricci solitons under a Heisenberg group action and related metrics

Document Type

Article

Abstract

We find complete expanding Kähler-Ricci solitons of two types. The first are of cohomogeneity one under the action of the (2m - 1)-dimensional Heisenberg group or a certain quotient of it, for any m ≥ 2. The second type, which generalizes the first, reside on ℂ*-bundles over compact Kähler Ricci-flat manifolds, admit an S1 action by isometries, and have two ends. Both types have the local structure stemming from an ansatz first described in [20]. We give curvature bounds for the first type, and asymptotics for both types.

Publication Title

Transformation Groups

Publication Date

2023

Volume

28

Issue

4

First Page

1651

Last Page

1667

ISSN

1083-4362

DOI

10.1007/s00031-022-09740-w

Keywords

Kähler-Ricci solitons

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