Results 21 to 30 of about 1,202,632 (386)

Kähler–Einstein metrics with prescribed singularities on Fano manifolds [PDF]

open access: yesJournal für die Reine und Angewandte Mathematik, 2020
Given a Fano manifold ( X , ω ) {(X,\omega)} , we develop a variational approach to characterize analytically the existence of Kähler–Einstein metrics with prescribed singularities, assuming that these singularities can be approximated algebraically ...
Antonio Trusiani
semanticscholar   +1 more source

Continuity of delta invariants and twisted K\"ahler--Einstein metrics. [PDF]

open access: yes, 2020
We show that delta invariant is a continuous function on the big cone. We will also introduce an analytic delta invariant and show its continuity in the Kahler cone, from which we deduce the continuity of the greatest Ricci lower bound.
Kewei Zhang
semanticscholar   +1 more source

Einstein metrics on spheres [PDF]

open access: yesAnnals of Mathematics, 2005
19 pages, some references added and clarifications made.
Boyer, Charles P.   +2 more
openaire   +2 more sources

Singular Kähler-Einstein metrics [PDF]

open access: yesJournal of the American Mathematical Society, 2009
We study degenerate complex Monge-Ampère equations of the form ( ω
Eyssidieux, Philippe   +2 more
openaire   +5 more sources

Geometry of Twisted Kähler–Einstein Metrics and Collapsing [PDF]

open access: yesCommunications in Mathematical Physics, 2019
We prove that the twisted Kähler–Einstein metrics that arise on the base of certain holomorphic fiber space with Calabi–Yau fibers have conical-type singularities along the discriminant locus.
M. Gross   +2 more
semanticscholar   +1 more source

Canonical metrics on generalized Hartogs triangles

open access: yesComptes Rendus. Mathématique, 2022
This paper is concerned with the canonical metrics on generalized Hartogs triangles. As main contributions, we first show the existence of a Kähler–Einstein metric on generalized Hartogs triangles.
Bi, Enchao, Hou, Zelin
doaj   +1 more source

Quot-scheme limit of Fubini-Study metrics and Donaldson's functional for vector bundles [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2022
For a holomorphic vector bundle $E$ over a polarised K\"ahler manifold, we establish a direct link between the slope stability of $E$ and the asymptotic behaviour of Donaldson's functional, by defining the Quot-scheme limit of Fubini-Study metrics.
Yoshinori Hashimoto, Julien Keller
doaj   +1 more source

Homogeneous Einstein metrics and butterflies

open access: yesAnnals of Global Analysis and Geometry, 2023
M.~M.~Graev associated in \cite{Gr} to a compact homogeneous space $G/H$ a nerve $\XGH$, whose non-contractibility implies the existence of a $G$-invariant Einstein metric on $G/H$. The nerve $\XGH$ is a compact semi-algebraic set, defined purely Lie theoretically by intermediate subgroups. In this paper we present a detailed description of the work of
Christoph Böhm, Megan M. Kerr
openaire   +2 more sources

Stability of Einstein metrics on homogeneous spaces [PDF]

open access: yes, 2023
(1) Stability of Einstein metrics on symmetric spaces of compact type: We prove the linear stability with respect to the Einstein-Hilbert action of the symmetric spaces SU(n), n ≥ 3, and E_6/F_4 .
Schwahn, Paul
core   +1 more source

Kähler–Einstein metrics on orbifolds and Einstein metrics on spheres

open access: yesCommentarii Mathematici Helvetici, 2007
A construction of Kähler–Einstein metrics using Galois coverings, studied by Arezzo–Ghigi–Pirola, is generalized to orbifolds. By applying it to certain orbifold covers of ℂℙ^n which are trivial set theoretically, one obtains new Einstein metrics on
GHIGI, ALESSANDRO CALLISTO, Kollar, J.
openaire   +5 more sources

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