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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.

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48 results for steady soliton

Unique steady and expanding solitons with spherical links identified.

problem Characterizing steady and expanding Ricci solitons with specific asymptotic symmetries.
method Symmetry principle applied to asymptotically cylindrical and conical GRSs, proving uniqueness for Bryant solitons.
result Bryant steady and expanding solitons are the unique asymptotically cylindrical and conical GRSs with spherical links under certain conditions.

In this paper we study potential function of gradient steady Ricci solitons. We prove that infimum of potential function decays linearly; in particular, potential function of rectifiable gradient steady Ricci solitons decays linearly. As a consequence, we show that a gradient steady Ricci soliton with bounded potential…

2011-02-15abs ↗pdf ↗

New classification of gradient steady Ricci solitons with vanishing D-tensor.

problem Classifying gradient steady Ricci solitons with specific properties.
method Extending Cao-Chen's work on Bach-flat gradient Ricci solitons, proving properties for DD-flat solitons.
result Any nn-dimensional complete noncompact gradient steady Ricci soliton with vanishing DD-tensor is either Ricci-flat or isometric to the Bryant soliton.

Study steady gradient Ricci solitons with cylindrical tangent flows at infinity.

problem Characterize the geometry of steady gradient Ricci solitons at infinity.
method Analyze the rescaled limits of finite-time singular solutions of the Ricci flow.
result Classify the tangent flows at infinity of 4-dimensional steady soliton singularity models.

In this paper we prove that any nn-dimensional (n4n\ge 4) complete Bach-flat gradient steady Ricci soliton with positive Ricci curvature is isometric to the Bryant soliton. We also show that a three-dimensional gradient steady Ricci soliton with divergence-free Bach tensor is either flat or isometric to the Bryant sol…

2011-07-22abs ↗pdf ↗

This research shows that steady solitons in higher dimensions always reduce at infinity.

problem Characterizing steady solitons with nonnegative sectional curvature in higher dimensions.
method Dimension reduction analysis and tangent flow classification.
result Steady solitons in higher dimensions always reduce at infinity.

We prove that the isoperimetric inequality is satisfied in the cigar steady soliton and in the Bryant steady soliton. Since both of them are Riemannian manifolds with warped product metric, we utilize the result of Guan-Li-Wang to get our conclusion. For the sake of the soliton structure, we believe that the geometric …

2019-12-11abs ↗pdf ↗

Study on scalar curvature decay in four-dimensional steady solitons.

problem Behavior of scalar curvature at infinity on four-dimensional steady solitons.
method Analysis of scalar curvature decay rate and asymptotic cone properties.
result Linear scalar curvature decay away from edges, stronger inequality if scalar curvature vanishes at infinity.

Study classifies 4D Ricci solitons with specific curvature conditions.

problem Classifying 4D gradient steady and expanding Ricci solitons with given curvature properties.
method Asymptotically cylindrical and conical assumptions; half-harmonic and half-nonnegative isotropic curvature conditions.
result Partial classification of 4D gradient expanding Ricci solitons with half-nonnegative isotropic curvature.

Study of 4D Ricci solitons with symmetry, finding precise geometric asymptotics.

problem Classifying 4D gradient steady Ricci solitons and understanding their geometric properties.
method Analysis of 4D gradient steady Ricci solitons with O(3)-symmetry under a weak curvature decay condition.
result Find precise geometric asymptotics similar to 3D compact κ-solutions.

The paper studies steady solitons with curvature decay and proves their smoothness.

problem Analyzing the properties of steady solitons with curvature decay.
method Bootstrap regularity in harmonic coordinates using the soliton equation.
result Steady gradient Ricci solitons are asymptotically cylindrical under certain curvature decay conditions.

Researchers found infinitely many non-collapsed steady Ricci solitons on complex line bundles.

problem Finding steady Ricci solitons on complex line bundles.
method Constructed a continuous 3-parameter family of non-shrinking Ricci solitons.
result Includes infinitely many asymptotically paraboloidal steady Ricci solitons.

The study examines 4D steady gradient Ricci solitons with nonnegative curvature away from a compact set.

problem Analyzing noncompact steady gradient Ricci solitons with nonnegative curvature operator.
method Examining the asymptotic behavior of noncompact κ-noncollapsed steady gradient Ricci solitons with nonnegative curvature operator away from a compact set.
result 4D noncompact κ-noncollapsed steady gradient Ricci solitons with nonnegative sectional curvature must be a Bryant Ricci soliton up to scaling.

New Kähler solitons found that are not U(n)U(n)-invariant.

problem Whether every steady gradient Kähler-Ricci soliton of positive curvature on Cn\mathbb{C}^{n} is U(n)U(n)-invariant.
method Constructing a family of U(1)imesU(n1)U(1) imes U(n-1)-invariant, but not U(n)U(n)-invariant, steady gradient Kähler-Ricci solitons.
result Found a family of complete steady gradient Kähler-Ricci solitons with strictly positive curvature operator on Cn\mathbb{C}^{n} for n3n\geq3.

The paper examines gradient Ricci solitons on orbifolds and proves their rigidity properties.

problem The rigidity of positively curved gradient Ricci solitons on orbifolds.
method Analyzes scalar curvature, uses nonnegative curvature operator, κ-noncollapsed condition, and asymptotic quotient cylindrical properties.
result Steady gradient Ricci solitons on orbifolds with positive curvature are rigid and must be quotients of the Bryant soliton.

Study proves rigidity of certain gradient steady Ricci solitons with harmonic Weyl curvature.

problem Investigating rigidity of specific gradient steady Ricci solitons.
method Proving rigidity for nn-dimensional (n5n\geq 5) complete noncompact gradient steady Ricci solitons with harmonic Weyl tensor.
result Proves that such solitons are either Ricci flat or isometric to the Bryant soliton up to scaling.

Survey paper analyzes curvature estimates for 4D gradient Ricci solitons.

problem Analyzing curvature estimates for different types of 4D gradient Ricci solitons.
method Comparison and new estimates provided for 4D gradient steady Ricci solitons.
result Sharp curvature estimate RmCR|Rm|\le C R for gradient steady Ricci solitons with positive Ricci curvature.

New steady gradient Ricci solitons found with specific symmetry.

problem Finding new steady gradient Ricci solitons with positive curvature.
method Utilized a procedure by Lai to construct examples with O(p)imesO(q)O(p) imes O(q) symmetry.
result Found new examples of steady gradient Ricci solitons with O(p)imesO(q)O(p) imes O(q) symmetry in dimensions p+qp+q.

Paper studies fundamental groups of certain Ricci solitons.

problem Understanding fundamental groups of specific Ricci solitons.
method Analyzes properties of complete steady gradient Ricci solitons with nonnegative sectional curvature.
result Fundamental groups of these solitons are either trivial or infinite.

We produce new non-Kähler complete steady gradient Ricci solitons whose asymptotics combine those of the Bryant solitons and the Hamilton cigar. We also obtain a family of complete Ricci-flat metrics with asymptotically locally conical asymptotics. Finally, we obtain numerical evidence for complete steady soliton struc…

2013-09-24abs ↗pdf ↗