Results 61 to 70 of about 95,172 (100)

On the moduli space of cubic threefolds and of some hyperkähler manifolds

open access: yes, 2017
In a famous paper Allcock, Carlson and Toledo describe the moduli space of smooth cubic threefolds as a 10-dimensional ball quotient. We show how the 10-dimensional ball quotient is also the moduli space of hyperkähler fourfolds deformation equivalent to
Sarti, Alessandra
core   +1 more source

Plurisubharmonic functions on hypercomplex manifolds and HKT- geometry

open access: yes, 2006
A hypercomplex manifold is a manifold equipped with a triple of complex structures I, J, K satisfying the quaternionic relations. We define a quaternionic analogue of plurisubharmonic functions on hypercomplex manifolds, and interpret these functions ...
Misha Verbitsky   +3 more
core   +1 more source

Hyperbolicity properties of moduli spaces of marked hyperkähler manifolds

open access: yes
International audienceWe study the hyperbolicity properties of moduli spaces of marked hyperkähler manifolds along directions corresponding to families having positivity properties for their Hodge bundle.
Philippe, Bastien
core  

Kobayashi pseudometric on hyperkähler manifold and Kobayashi’s conjecture

open access: yes, 2016
The Kobayashi pseudometric on a complex manifold M is the maximal pseudometric such that any holomorphic map from the Poincare disk to M is distance-decreasing. Kobayashi has conjectured that this pseudometric vanishes on Calabi-Yau manifolds.
Kamenova, Ljudmila
core   +1 more source

Manifolds with holonomy U∗(2m)

open access: yes, 2019
We consider the geometry determined by a torsion-free affine connection whose holonomy lies in the subgroup U∗(2m) , a real form of GL(2m,C) , otherwise denoted by SL(m,H)⋅U(1) . We show in particular how examples may be generated from quaternionic

core   +1 more source

Erratum to “Curvature of hyperkähler quotients”

open access: yesOpen Mathematics, 2009
Bielawski Roger
doaj   +1 more source

Algebraic nonhyperbolicity of hyperkähler manifolds with picard rank greater than one

open access: yes, 2017
A projective manifold is algebraically hyperbolic if the de-gree of any curve is bounded from above by its genus times a constant, which is independent from the curve. This is a property which follows from Kobayashi hyperbolicity.
Verbitskiy, Misha, Kamenova, Ljudmila
core  

Quaternionic geometry of matroids

open access: yesOpen Mathematics, 2005
Hausel Tamás
doaj   +1 more source

Roundness of the ample cone and existence of double Lagrangian fibrations on hyperkähler manifolds

open access: yes
Let M be a hyperkähler manifold of maximal holonomy (i.e., an IHS manifold), and let K be its Kähler cone, which is an open, convex subset in the space H1,1(M,R) of real (1,1)-forms.
Misha Verbitsky, Ljudmila Kamenova
core   +1 more source

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