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Matter field Kahler metric in heterotic string theory from localisation
Published 2018“…We propose an analytic method to calculate the matter field Kähler metric in heterotic compactifications on smooth Calabi-Yau three-folds with Abelian internal gauge fields. …”
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Matter field Kähler metric in heterotic string theory from localisation
Published 2018“…We propose an analytic method to calculate the matter field Kähler metric in heterotic compactifications on smooth Calabi-Yau three-folds with Abelian internal gauge fields. …”
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Asymptotically Locally Euclidean metrics with holonomy SU(m)
Published 1999“…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. …”
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Equivariant inverse spectral theory and toric orbifolds
Published 2013Get full text
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Moduli Kähler potential for M theory on a G2 manifold
Published 2004“…As a verification of our result, some of the components of the Kähler metric are computed directly by integration over harmonic forms. …”
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COMMENTS ON CONIFOLDS
Published 1990“…A priori, there exists the possibility that the singular manifold that is common to two different moduli spaces has two different Ricci-flat Kahler metrics, each being the limit of the Ricci-flat Kähler metric of the respective topologically distinct Calabi-Yau manifold. …”
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Symmetric vacua in heterotic M theory
Published 2000“…In particular, the gauge kinetic functions receive no perturbative threshold corrections, there are no corrections to the matter field Kähler metric and the associated five-dimensional effective theory admits flat space as its vacuum.…”
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On the degeneration of asymptotically conical Calabi–Yau metrics
Published 2022“…We show that under appropriate assumptions, the Ricci-flat Kähler metrics converge to a incomplete smooth Ricci-flat Kähler metric away from a compact subvariety. …”
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Morita equivalence and the generalized Kähler potential
Published 2020“…To solve the problem we make use of, and generalize, two main tools: the first is the notion of symplectic Morita equivalence, developed by Weinstein and Xu to study Poisson manifolds; the second is Donaldson's interpretation of a Kähler metric as a real Lagrangian submanifold in a deformation of the holomorphic cotangent bundle.…”
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Quasi-ALE metrics with holonomy SU(m) and Sp(m)
Published 1999“…We define a special class of Kahler metrics g on X called Quasi Asymptotically Locally Euclidean (QALE) metrics. …”
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Morita equivalence and the generalized Kähler potential
Published 2022“…To solve the problem we make use of, and generalize, two main tools: the first is the notion of symplectic Morita equivalence, developed by Weinstein and Xu to study Poisson manifolds; the second is Donaldson’s interpretation of a Kähler metric as a real Lagrangian submanifold in a deformation of the holomorphic cotangent bundle.…”
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Geometry of Ricci-flat Kähler manifolds and some counterexamples
Published 2006Get full text
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Hearing Delzant polytopes from the equivariant spectrum
Published 2013Get full text
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Hyperkähler and quaternionic Kähler geometry
Published 1990“…</p> <p>Nilpotent orbits in a complex semi-simple Lie algebra, with the hyperKähler metrics defined by Kronheimer, are shown to give rise to quaternionic Kähler metrics and various examples of these metrics are identified. …”
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Resolutions of non-regular Ricci-flat Kahler cones
Published 2009“…We present explicit constructions of complete Ricci-flat Kähler metrics that are asymptotic to cones over non-regular Sasaki-Einstein manifolds. …”
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Metric geometries over the split quaternions
Published 2005“…These are used to classify examples with a fully homogeneous action of a semi-simple Lie group, and to construct distinct para-quaternionic Kähler metrics from indefinite real analytic conformal manifolds. …”
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The geometry and stability of fibrations
Published 2022“…The second topic is the deformation theory and families of Kähler metrics with weighted constant scalar curvature. …”
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Supersyrnmetric AdS(5) solutions of M-theory
Published 2004“…We show that M6 is partly specified by a one-parameter family of four-dimensional Kähler metrics. We find a large family of new explicit regular solutions where M6 is a compact, complex manifold which is topologically a 2-sphere bundle over a four-dimensional base, where the latter is either (i) Kähler-Einstein with positive curvature, or (ii) a product of two constant-curvature Riemann surfaces. …”
Journal article