Asymptotically Locally Euclidean metrics with holonomy SU(m)

dc.creatorJoyce, Dominic
dc.date1999-05-07
dc.date.accessioned2026-07-07T05:28:59Z
dc.date.available2026-07-07T05:28:59Z
dc.descriptionLet G be a nontrivial finite subgroup of U(m) acting freely on C^m - 0. Then C^m/G has an isolated quotient singularity at 0. Let X be a resolution of C^m/G, and g a Kahler metric on X. We say that g is Asymptotically Locally Euclidean (ALE) if it is asymptotic in a certain way to the Euclidean metric on C^m/G. In this paper we study Ricci-flat ALE Kahler metrics on X. We show that if G is a subgroup of SU(m) acting freely on C^m - 0, and X is a crepant resolution of C^m/G, then there is a unique Ricci-flat ALE Kahler metric in each Kahler class. This is proved using a version of the Calabi conjecture for ALE manifolds. We also show the metrics have holonomy SU(m). These results will be applied in the author's book ("Compact manifolds with special holonomy", to be published by OUP, 2000) to construct new examples of compact 7- and 8-manifolds with exceptional holonomy. They can also be used to describe the Calabi-Yau metrics on resolutions of a Calabi-Yau orbifold. The paper has a sequel, "Quasi-ALE metrics with holonomy SU(m) and Sp(m)", math.AG/9905043, which studies Kahler metrics on resolutions of non-isolated singularities C^m/G.
dc.description23 pages, LaTeX, uses packages amstex and amssymb
dc.identifierhttps://arxiv.org/abs/math/9905041
dc.identifierhttp://arxiv.org/abs/math/9905041
dc.identifierAnnals of Global Analysis and Geometry 19 (2001), 55-73.
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/78467
dc.subjectAlgebraic Geometry
dc.subjectDifferential Geometry
dc.titleAsymptotically Locally Euclidean metrics with holonomy SU(m)
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