Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-07-30
Class.Quant.Grav.24:6393-6416,2007
Physics
High Energy Physics
High Energy Physics - Theory
LaTeX, 34 pages, 4 figures (v2)presentation improved, typos corrected and references added (v3)matches published version
Scientific paper
10.1088/0264-9381/24/24/014
We pursue the symplectic description of toric Kahler manifolds. There exists a general local classification of metrics on toric Kahler manifolds equipped with Hamiltonian two-forms due to Apostolov, Calderbank and Gauduchon(ACG). We derive the symplectic potential for these metrics. Using a method due to Abreu, we relate the symplectic potential to the canonical potential written by Guillemin. This enables us to recover the moment polytope associated with metrics and we thus obtain global information about the metric. We illustrate these general considerations by focusing on six-dimensional Ricci flat metrics and obtain Ricci flat metrics associated with real cones over L^{pqr} and Y^{pq} manifolds. The metrics associated with cones over Y^{pq} manifolds turn out to be partially resolved with two blowup parameters taking special (non-zero)values. For a fixed Y^{pq} manifold, we find explicit metrics for several inequivalent blow-ups parametrised by a natural number k in the range 0
Balasubramanian Aswin K.
Govindarajan Suresh
Gowdigere Chethan N.
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