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A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

169,341 papers · 148 categories

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48 results for Kahler-Einstein Fano manifolds

Survey on Kähler-Einstein and weighted solitons on Fano manifolds.

problem Existence of coupled Kähler-Einstein metrics and weighted solitons on Fano manifolds.
method Generalization of algebraic conditions for K-polystability.
result Existence of coupled Kähler-Einstein metrics and weighted solitons is equivalent to algebraic conditions.

Study of compactifications for Kähler-Einstein Fano manifolds.

problem Compactification of moduli spaces of Kähler-Einstein Fano manifolds.
method Geometry of metric tangent cones and algebro-geometric study of singularities.
result First concrete examples of Gromov-Hausdorff compactifications in complex dimensions >2.

The paper examines conditions for Kähler-Einstein metrics on deformations of Fano manifolds.

problem Conditions for Kähler-Einstein metrics on deformations of Fano manifolds.
method Analyzes necessary and sufficient conditions, approximates Weil-Petersson metric, describes plurisubharmonicity of energy functional.
result Provides new conditions for the existence of Kähler-Einstein metrics on deformations of Fano Kähler-Einstein manifolds.

New examples found of complex manifolds with special metrics.

problem Existence of Kähler-Einstein metrics on certain complex manifolds.
method Using Hultgren's polytope formulation, constructing explicit examples of toric Fano manifolds.
result Found examples of projective bundles that admit coupled Kähler-Einstein metrics but no ordinary Kähler-Einstein metrics.

Proves Matsushima's theorem for Kähler-Einstein metrics on Fano manifolds with cone singularities.

problem Proving Matsushima's theorem for Kähler-Einstein metrics on Fano manifolds with cone singularities.
method Alternative proof using continuity method and existence theorem via conic Ding functional.
result Existence of Kähler-Einstein cone metrics on Fano manifolds with cone singularities.

New proof of Kähler-Einstein Fano manifold LL^\infty estimates.

problem Uniform LL^\infty estimates for Kähler-Ricci flow on Kähler-Einstein Fano manifolds.
method Using Chen-Cheng's auxiliary Monge-Ampère equation and the Alexandrov-Bakelman-Pucci maximum principle, without pluripotential theory.
result Uniform LL^\infty estimates derived for Kähler-Ricci flow on Kähler-Einstein Fano manifolds.

We introduce a new effective stability named "divisorial stability" for Fano manifolds which is weaker than K-stability and is stronger than slope stability along divisors. We show that we can test divisorial stability via the volume function. As a corollary, we prove that the first coordinate of the barycenter of the …

2015-08-17abs ↗pdf ↗

We prove that Kahler-Einstein Fano manifolds with finite automorphism groups form Hausdorff moduli algebraic space with only quotient singularities. We also discuss the limits as Q-Fano varieties which should be put on the boundary of its canonical compactification.

2012-11-20abs ↗pdf ↗

Develops variational approach for Kähler-Einstein metrics with prescribed singularities on Fano manifolds.

problem Existence and characterization of Kähler-Einstein metrics with prescribed singularities on Fano manifolds.
method Variational approach, algebraic approximation of singularities, function α_ω, continuity method.
result Many K-stable manifolds admit all possible Kähler-Einstein metrics with prescribed singularities.

Study shows convergence of anticanonically balanced metrics to Kähler-Einstein metrics on Fano manifolds.

problem Finding anticanonically balanced metrics on Fano manifolds.
method Simplification of Donaldson's proof using Berezin-Toeplitz quantization.
result Sequence of anticanonically balanced metrics converges to Kähler-Einstein metric.

Study on Fano manifolds without K-E metrics and their properties.

problem Characterizing Fano manifolds without K-E metrics and understanding their properties.
method Examining various examples of horosymmetric manifolds and using different constructions to provide infinite families of Fano manifolds.
result Infinitely many examples of Fano manifolds without K-E metrics but with coupled K-E metrics.

The paper proves conditions for K-stability and existence of Kähler-Einstein metrics on Fano spherical varieties.

problem Conditions for K-stability and existence of Kähler-Einstein metrics on Fano spherical varieties.
method Criterion based on moment polytope and combinatorial data for K-stability; uses Yau-Tian-Donaldson conjecture for Fano manifolds.
result Criterion for K-stability and existence of Kähler-Einstein metrics on spherical Fano manifolds.

Kähler-Einstein metrics on toric submanifolds cannot be induced by projective immersions.

problem Characterizing Kähler-Einstein metrics induced by projective immersions.
method Analyzing four families of symmetric and non-symmetric toric Fano manifolds.
result Kähler-Einstein metrics on toric submanifolds cannot be induced by projective immersions.

Conditions for solutions to complex Monge-Ampère equations on Fano manifolds.

problem Existence of solutions to complex Monge-Ampère equations on Fano horosymmetric manifolds.
method Necessary and sufficient conditions derived from combinatorial data.
result Conditions for existence of solutions in terms of combinatorial data.

The study examines conical Kähler-Einstein metrics on specific Fano manifolds and their behavior at the limit angle.

problem Analyzing conical Kähler-Einstein metrics on rank one horosymmetric Fano manifolds.
method Investigates the convergence of these metrics as the cone angle approaches zero, focusing on the behavior on the complement of a codimension one orbit.
result The metrics converge to the Kähler-Einstein metric on the basis and Stenzel's Ricci flat Kähler metrics on the fibers.

We show that if a Fano manifold MM is K-stable with respect to special degenerations equivariant under a compact group of automorphisms, then MM admits a Kähler-Einstein metric. This is a strengthening of the solution of the Yau-Tian-Donaldson conjecture for Fano manifolds by Chen-Donaldson-Sun, and can be used to ob…

2015-06-24abs ↗pdf ↗

Study on GL(2) geometries on complex manifolds, focusing on Kähler-Einstein and Fano manifolds.

problem Characterizing compact complex manifolds with holomorphic GL(2)-geometry.
method Analyzing Kähler-Einstein and Fano manifolds, using GL(2) and SL(2) geometries.
result Only compact Kähler-Einstein manifolds with holomorphic GL(2)-geometry are covered by compact complex tori, three dimensional quadric, or three dimensional Lie ball.

The paper proves stability of Kähler-Ricci flows on Fano manifolds.

problem Stability of conical Kähler-Ricci flows on Fano manifolds.
method Using the boundedness of Log Mabuchi energy, the paper proves stability of conical Kähler-Einstein metrics.
result For any β' close to β, the conical Kähler-Ricci flow converges to a conical Kähler-Einstein metric.

In this Thesis, I investigate how Fano manifolds equipped with a Kahler-Einstein metric can degenerate as metric spaces (in the Gromov-Hausdorff topology) and some of the relations of this question with Algebraic Geometry, in particular in the direction of the study of moduli spaces and their compactifications.

2012-11-22abs ↗pdf ↗

Existence of Kähler-Einstein metrics on compactifications of Lie groups.

problem Existence of Kähler-Einstein metrics on Q\mathbb Q-Fano compactifications of Lie groups.
method Proving existence through compactifications of Lie groups.
result Classification of Q\mathbb Q-Fano compactifications of SO4(C)SO_4(\mathbb C) with Kähler-Einstein metrics.

Researchers prove existence of Kähler-Einstein metrics with conic singularities on Fano manifolds.

problem Existence of Kähler-Einstein metrics with conic singularities on Fano manifolds.
method Analyzing automorphisms and limits at various scales to prove the existence of metrics.
result Existence of Kähler-Einstein metrics with conic singularities for β>ββ > β_* close to ββ_*.

Study proves most Fano threefolds are Kähler-Einstein.

problem Existence of Kähler-Einstein metrics on smooth Fano threefolds.
method Investigated smooth Fano threefolds of Picard rank one and anticanonical degree 22 with C\mathbb{C}^\ast action.
result Proved existence of Kähler-Einstein metrics on most such threefolds, except possibly two cases.

The study finds Kähler-Einstein metrics on certain Fano varieties of type AIII.

problem Finding Kähler-Einstein metrics on specific Fano varieties.
method Using combinatorial criteria for K-polystability and properties of Fano varieties.
result Proves existence of Kähler-Einstein metrics on XmX_m for m4m \geq 4 and on YmY_m for m=4,5m = 4, 5.

New research confirms Kähler-Einstein metrics for all Fano threefolds of degree 22.

problem Identifying Fano threefolds of degree 22 with Kähler-Einstein metrics.
method Analyzing the structure and properties of Fano threefolds of Picard rank one with anti-canonical degree 22.
result All remaining Fano threefolds of degree 22 admit Kähler-Einstein metrics.