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Related papers: A note on extremal toric almost K\"ahler metrics

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Given a compact Kahler manifold with an extremal metric (M,\omega), we give sufficient conditions on finite sets points p_1,...,p_n and weights a_1,...a_n for which the blow up of M at p_1,...,p_n has an extremal metric in the Kahler class…

Differential Geometry · Mathematics 2019-12-19 C. Arezzo , F. Pacard , M. Singer

In this paper, we study rotationally symmetric extremal K\"ahler metrics on $\mathbb C^n$ ($n\geq 2$) and $\mathbb C^2 \backslash\{0\}$. We present a classification of such metrics based on the zeros of the polynomial appearing in Calabi's…

Differential Geometry · Mathematics 2021-06-01 Selin Taskent

We establish an equivalence between conformally Einstein--Maxwell Kahler 4-manifolds (recently studied in many works) and extremal Kahler 4-manifolds (in the sense of Calabi) with nowhere vanishing scalar curvature. The corresponding pairs…

Differential Geometry · Mathematics 2019-01-07 Vestislav Apostolov , David M. J. Calderbank

In this paper we prove that for toric varieties the uniform K-stability is the necessary condition for the existence of extremal metrics.

Differential Geometry · Mathematics 2011-12-22 Bohui Chen , An-Min Li , Li Sheng

Let $G$ be an even dimensional, connected, abelian Lie group and $(\mathcal{A}^\infty,G,\alpha,\tau)$ be a $C^*$-dynamical system equipped with a faithful $G$-invariant trace $\tau$. We show that whenever it determines a…

Operator Algebras · Mathematics 2026-01-19 Satyajit Guin

We prove that on a K\"ahler manifold admitting an extremal metric $\omega$ and for any K\"ahler potential $\varphi_0$ close to $\omega$, the Calabi flow starting at $\varphi_0$ exists for all time and the modified Calabi flow starting at…

Differential Geometry · Mathematics 2015-01-05 Hongnian Huang , Kai Zheng

In this paper we give sufficient conditions on a compact orbifold with an extremal Kaehler metric to admit a resolution with an extremal Kaehler metric. We also complete the Kaehler constant scalar curvature case.

Differential Geometry · Mathematics 2015-07-17 Claudio Arezzo , Riccardo Lena , Lorenzo Mazzieri

We study the stability of compact pseudo-K\"ahler manifolds, i.e. compact complex manifolds $X$ endowed with a symplectic form compatible with the complex structure of $X$. When the corresponding metric is positive-definite, $X$ is K\"ahler…

Differential Geometry · Mathematics 2020-01-15 Adela Latorre , Luis Ugarte

We prove the existence of extremal, non-csc, K\"ahler metrics on certain unstable projectivised vector bundles $\P (E) \to M$ over a cscK-manifold $M$ with discrete holomorphic automorphism group, in certain adiabatic K\"ahler classes. In…

Differential Geometry · Mathematics 2015-11-03 Till Brönnle

We study algebro-geometric consequences of the quantised extremal K\"ahler metrics, introduced in the previous work of the author. We prove that the existence of quantised extremal metrics implies weak relative Chow polystability. As a…

Algebraic Geometry · Mathematics 2019-08-22 Yoshinori Hashimoto

Consider a fibred compact K\"ahler manifold X endowed with a relatively ample line bundle, such that each fibre admits a constant scalar curvature K\"ahler metric and has discrete automorphism group. Assuming the base of the fibration…

Differential Geometry · Mathematics 2019-10-02 Ruadhaí Dervan , Lars Martin Sektnan

In this paper, by generalizing the concept of balanced metrics, we shall show that Donaldson's asymptotic approximation of balanced metrics for constant scalar curvature cases can be generalized to extremal Kaehler cases.

Differential Geometry · Mathematics 2007-05-23 Toshiki Mabuchi

We established a Yau--Tian--Donaldson type correspondence, expressed in terms of a single Delzant polytope, concerning the existence of extremal K\"ahler metrics on a large class of toric fibrations, introduced by…

Differential Geometry · Mathematics 2022-05-27 Simon Jubert

In this paper, we shall give some affirmative answer to an extremal Kaehler version of the Yau-Tian-Donaldson Conjecture. For a polarized algebraic manifold $(X,L)$, we choose a maximal algebraic torus $T$ in the group of holomorphic…

Differential Geometry · Mathematics 2013-07-22 Toshiki Mabuchi

We extend the Abreu-Guillemin theory of invariant K\"ahler metrics from toric symplectic manifolds to any symplectic manifold admitting a toric action of a symplectic torus bundle. We show that these are precisely the symplectic manifolds…

Differential Geometry · Mathematics 2026-04-16 Rui Loja Fernandes , Maarten Mol

Suppose that a polarised K\"ahler manifold $(X,L)$ admits an extremal metric $\omega$. We prove that there exists a sequence of K\"ahler metrics $\{ \omega_k \}_k$, converging to $\omega$ as $k \to \infty$, each of which satisfies the…

Differential Geometry · Mathematics 2020-03-09 Yoshinori Hashimoto

For $U(2)$-invariant 4-metrics, we show that the $B^t$-flat metrics are very different from the other canonical metrics (Bach-flat, Einstein, extremal K\"ahler, etc). We show every $U(2)$-invariant metric is conformal to two separate…

Differential Geometry · Mathematics 2023-09-04 Keaton Naff , Brian Weber

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

Let $(L, h)\to (X, \omega)$ denote a polarized toric K\"ahler manifold. Fix a toric submanifold $Y$ and denote by $\hat{\rho}_{tk}:X\to \mathbb{R}$ the partial density function corresponding to the partial Bergman kernel projecting smooth…

Differential Geometry · Mathematics 2013-09-20 Florian T. Pokorny , Michael Singer

In this paper we develop an analogue of the Berkovich analytification for non-necessarily algebraic complex spaces. We apply this theory to generalize to arbitrary compact K\"ahler manifolds a result of Chi Li, proving that a stronger…

Differential Geometry · Mathematics 2025-09-22 Pietro Mesquita-Piccione