Ricci Yang-Mills flow on surfaces

Details Ricci Yang-Mills flow on surfaces Ricci Yang-Mills flow on surfaces

2007-10-29

arxiv.org/abs/0710.5487v2

Mathematics

Differential Geometry

Scientific paper

We study the behaviour of the Ricci Yang-Mills flow for U(1) bundles on surfaces. We show that existence for the flow reduces to a bound on the isoperimetric constant. In the presence of such a bound, we show that on $S^2$, if the bundle is nontrivial, the flow exists for all time. For higher genus surfaces the flow always exists for all time. The volume normalized flow always exists for all time and converges to a constant scalar curvature metric with the bundle curvature $F$ parallel. Finally, in an appendix we classify all gradient solitons of this flow on surfaces.

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