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The author has proved that a crepant resolution Y of a Ricci-flat K��hler cone X admits a complete Ricci-flat K��hler metric asymptotic to the cone metric in every K��hler class in H^2_c(Y,\R). These manifolds are generalizations of the Ricci-flat ALE K��hler spaces known by the work of P. Kronheimer, D. Joyce and others. This article considers further the problem of constructing examples. We show that every 3-dimensional Gorenstein toric K��hler cone admits a crepant resolution for which the above theorem applies. This gives infinitely many examples of asymptotically conical Ricci-flat manifolds. Then other examples are given of which are crepant resolutions hypersurface singularities which are known to admit Ricci-flat K��hler cone metrics by the work of C. Boyer, K. Galicki, J. Koll��r, and others. Two families of hypersurface examples are given which are distinguished by the condition b_3(Y)=0 or b_3(Y)>0.
32 pages, 1 figure Some material added on embeddings of cones and some minor corrections made
Mathematics - Differential Geometry, Mathematics - Algebraic Geometry, Differential Geometry (math.DG), FOS: Mathematics, 53C25 (Primary) 53C55, 14M25 (Secondary), Algebraic Geometry (math.AG)
Mathematics - Differential Geometry, Mathematics - Algebraic Geometry, Differential Geometry (math.DG), FOS: Mathematics, 53C25 (Primary) 53C55, 14M25 (Secondary), Algebraic Geometry (math.AG)
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 30 | |
popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Top 10% | |
influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 10% | |
impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Top 10% |