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In this article, I prove the following statement: Every compact complex surface with even first Betti number is deformation equivalent to one which admits an extremal K\"ahler metric. In fact, this extremal K\"ahler metric can even be taken…

Differential Geometry · Mathematics 2008-09-26 Yujen Shu

We construct new explicit toric scalar-flat K{\"a}hler ALE metrics on weighted projective spaces of non-compact type, which we use to obtain smooth extremal K{\"a}hler metrics on appropriate resolutions of orbifolds. In particular, we…

Differential Geometry · Mathematics 2016-03-25 Vestislav Apostolov , Yann Rollin

We obtain results that relate Donaldson-Futaki type invariants (that is, the numerical invariants used to define K-stability for general polarised manifolds) for a toric polarised manifold and for a compactification of its mirror…

Algebraic Geometry · Mathematics 2026-04-28 Jacopo Stoppa

We consider the unique measure of maximal entropy of an automorphism of a compact K{\"a}hler manifold with simple action on cohomology. We show that it is exponentially mixing of all orders with respect to H{\"o}lder observables. It follows…

Complex Variables · Mathematics 2023-04-27 Fabrizio Bianchi , Tien-Cuong Dinh

In this paper we investigate the existence of metrics with weighted constant scalar curvature (wcscK for short) on a compact K\"ahler manifold $X$: this notion include constant scalar curvature K\"ahler metrics, weighted solitons, Calabi's…

Differential Geometry · Mathematics 2026-01-14 Eleonora Di Nezza , Simon Jubert , Abdellah Lahdili

It is shown that a compact $n$-dimensional K\"ahler manifold with $\frac{n}{2}$-positive Calabi curvature operator has the rational cohomology of complex projective space. For even $n,$ this is sharp in the sense that the complex quadric…

Differential Geometry · Mathematics 2025-05-07 Kyle Broder , Jan Nienhaus , Peter Petersen , James Stanfield , Matthias Wink

We give a complete list, for $n \leq 6$, of non-isometric $\mathbb{T}^n$-invariant Kaehler-Einstein manifolds immersed in a finite dimensional complex projective space endowed with the Fubini-Study metric. This solves, in the aforementioned…

Differential Geometry · Mathematics 2026-02-18 Gianni Manno , Filippo Salis

Based on an identity of Jacobi, we prove a simple formula that computes the pushforward of analytic functions of the exceptional divisor of a blowup of a projective variety along a smooth complete intersection with normal crossing. We apply…

Algebraic Geometry · Mathematics 2019-10-18 Mboyo Esole , Patrick Jefferson , Monica Jinwoo Kang

We establish a version, formulated in terms of non-Archimedean pluripotential theory, of the Yau-Tian-Donaldson conjecture for constant scalar curvature and, more generally, weighted extremal K\"ahler metrics with prescribed compact…

Differential Geometry · Mathematics 2025-09-19 Sébastien Boucksom , Mattias Jonsson

In this paper we introduce higher extremal Kahler metrics. We provide an example of the same on a minimal ruled surface. We also prove a perturbation result that implies that there are non-trivial examples of higher constant scalar…

Differential Geometry · Mathematics 2017-09-29 Vamsi Pritham Pingali

As a first step towards a refined description of the asymptotic of the Weil-Petersson metric on the moduli space of polarized Calabi-Yau manifolds we investigate the concrete case of abelian varieties by linking such asymptotic with the…

Differential Geometry · Mathematics 2026-03-02 Yanbo Fang , Andres Gomez

We prove that the deformation theory of compactifiable asymptotically cylindrical Calabi-Yau manifolds is unobstructed. This relies on a detailed study of the Dolbeault-Hodge theory and its description in terms of the cohomology of the…

Differential Geometry · Mathematics 2014-09-25 Ronan J. Conlon , Rafe Mazzeo , Frédéric Rochon

Recently, Donaldson proved asymptotic stability for a polarized algebraic manifold $M$ with polarization class admitting a K\"ahler metric of constant scalar curvature, essentially when the linear algebraic part $H$ of $Aut^0(M)$ is…

Differential Geometry · Mathematics 2009-11-10 Toshiki Mabuchi

We propose an analytic method to calculate the matter field K\"ahler metric in heterotic compactifications on smooth Calabi-Yau three-folds with Abelian internal gauge fields. The matter field K\"ahler metric determines the normalisations…

High Energy Physics - Theory · Physics 2018-05-23 Stefan Blesneag , Evgeny I. Buchbinder , Andrei Constantin , Andre Lukas , Eran Palti

For any Lagrangean K\"ahler submanifold $M \subset T^*{\Bbb C}^n$, there exists a canonical hyper K\"ahler metric on $T^*M$. A K\"ahler potential for this metric is given by the generalized Calabi Ansatz of the theoretical physicists…

Algebraic Geometry · Mathematics 2009-09-25 Vicente Cortés

We derive some consequences of the Liouville theorem for plurisubharmonic functions of L.-F. Tam and the author. The first result provides a nonlinear version of the complex splitting theorem (which splits off a factor of $\mathbb{C}$…

Differential Geometry · Mathematics 2018-08-28 Lei Ni

We construct many new examples of complete Calabi-Yau metrics of maximal volume growth on certain smoothings of Cartesian products of Calabi-Yau cones with smooth cross-sections. A detailed description of the geometry at infinity of these…

Differential Geometry · Mathematics 2026-04-16 Ronan J. Conlon , Frédéric Rochon

Let M=P(E) be a ruled surface. We introduce metrics of finite volume on M whose singularities are parametrized by a parabolic structure over E. Then, we generalise results of Burns--de Bartolomeis and LeBrun, by showing that the existence…

Differential Geometry · Mathematics 2016-09-07 Yann Rollin

In 1978, Yau confirmed a conjecture due to Calabi stating the existence of K\"ahler metrics with prescribed Ricci forms on compact K\"ahler manifolds. A version of this statement for effective orbifolds can be found in the literature. In…

Complex Variables · Mathematics 2017-11-01 Mitchell Faulk

We prove that constant scalar curvature K\"ahler (cscK) manifolds with transcendental cohomology class are K-semistable, naturally generalising the situation for polarised manifolds. Relying on a very recent result by R. Berman, T. Darvas…

Differential Geometry · Mathematics 2018-12-31 Zakarias Sjöström Dyrefelt