Results on coupled Ricci and harmonic map flows
Results on coupled Ricci and harmonic map flows
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DOI:
10.1515/advgeom-2014-0026
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发表时间:
2010-12
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通讯作者:
Michael Bradford Williams
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文献类型:
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作者:
Michael Bradford Williams
We explore the harmonic-Ricci flow---that is, Ricci flow coupled with harmonic map flow---both as it arises naturally in certain principal bundle constructions related to Ricci flow and as a geometric flow in its own right. We demonstrate that one natural geometric context for the flow is a special case of the locally $\mathbb{R}^N$-invariant Ricci flow of Lott, and provide examples of gradient solitons for the flow. We prove a version of Hamilton's compactness theorem for the flow, and then generalize it to the category of \'{e}tale Riemannian groupoids. Finally, we provide a detailed example of solutions to the flow on the Lie group $\Nil^3$.