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169,181 papers · 148 categories

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48 results for Deformation Stability

Study higher rank deformed Hermitian-Yang-Mills equations for stable vector bundles.

problem Stability conditions for higher rank vector bundles over complex manifolds.
method Establish equivalence between dHYM equations and ZZ-stability.
result Equivalence between dHYM solutions and ZZ-stability for vortex type bundles.

Study higher rank deformed Hermitian-Yang-Mills equations for stable vector bundles.

problem Stability conditions for higher rank vector bundles over complex manifolds.
method Establish equivalence between dHYM equations and ZZ-stability.
result Equivalence between dHYM solutions and ZZ-stability for vortex type bundles.

Surveying progress on deformed Hermitian-Yang-Mills equation and its connections to stability.

problem Solvability of the deformed Hermitian-Yang-Mills equation and its relation to geometric stability.
method Utilizing geometric invariant theory (GIT) and Bridgeland stability theory to analyze the equation.
result On the blow-up of \(\mathbb{P}^2\), line bundles admitting a solution of the deformed Hermitian-Yang-Mills equation are Bridgeland stable, but not conversely.

Simplified proof of stability for Ricci flow near ALE metrics.

problem Stability of Ricci flow near ALE metrics with integrable deformations.
method Equivalence between integrability and almost-orthogonality property of Ricci-DeTurck tensor, analysis in weighted Holder spaces.
result Dynamical stability of Ricci flow near linearly stable Ricci-flat ALE metrics.

In this paper we obtain a stability theorem of generalized Kahler structures with one pure spinor under small deformations of generalized complex structures. (This is analogous to the stability theorem of Kahler manifolds by Kodaira-Spencer.) We apply the stability theorem to a class of compact Kahler manifolds which a…

2007-05-17abs ↗pdf ↗

Wiatowski and Bölcskei, 2015, proved that deformation stability and vertical translation invariance of deep convolutional neural network-based feature extractors are guaranteed by the network structure per se rather than the specific convolution kernels and non-linearities. While the translation invariance result appli…

2016-04-29abs ↗pdf ↗

We consider the stability of Sasaki-extremal metrics under deformations of the complex structure on the Reeb foliation. Given such a deformation preserving the action of a compact subgroup of the automorphism group of a Sasaki-extremal structure, a sufficient condition is given involving the nondegeneracy of the relati…

2012-04-07abs ↗pdf ↗

Study on scalar curvature deformations in pseudohermitian manifolds.

problem Deformation of scalar curvature in pseudohermitian manifolds.
method Analogy with Riemannian manifolds, introduction of RR-singular spaces, stability conditions, partial infinitesimal rigidity.
result Partial infinitesimal rigidity result for scalar curvature of compact pseudohermitian manifolds.

Study shows stability of locally conformally balanced condition under modifications but not under small deformations.

problem Stability of locally conformally balanced condition under small deformations and modifications.
method Proved stability under proper modifications and instability under small deformations using examples and Hilbert-Chow map.
result Stability of locally conformally balanced condition under proper modifications and instability under small deformations.

Stability of Type IIA flow ensures Kähler properties of Calabi-Yau 3-folds.

problem Ensuring the Kähler property of Calabi-Yau 3-folds under symplectic deformations.
method Established dynamical stability of Type IIA flow near stationary points.
result Stability of Type IIA flow ensures the stability of Kähler properties under symplectic deformations.

Compactifies stability space for A2A_2 category, introducing qq-deformed rational numbers.

problem Stability conditions in triangulated categories and their compactifications.
method Embedding into an infinite-dimensional projective space, using B3B_3 braid group action.
result Two orbits in the boundary correspond to qq-deformed rational numbers.

Study deformed Hermitian-Yang-Mills equation on complex projective space blowup.

problem Solving the deformed Hermitian-Yang-Mills equation on complex projective space blowup.
method Expressed the equation as an ODE and solved it using combinatorial methods under an algebraic stability condition.
result Evidence supporting a conjecture on general compact Kahler manifolds.

New examples of deformed Hermitian-Yang-Mills connections found.

problem Constructing deformed Hermitian-Yang-Mills connections on manifolds.
method Constructed first higher rank, irreducible deformed Hermitian-Yang-Mills connections in both small and large radius regimes.
result Existence of solutions with any possible angle and ruling out some stability conditions.

This paper concerns with deformations of noncompact complex hyperbolic manifolds (with locally Bergman metric), varieties of discrete representations of their fundamental groups into PU(n,1)PU(n,1) and the problem of (quasiconformal) stability of deformations of such groups and manifolds in the sense of L.Bers and D.Sulliva…

1997-12-30abs ↗pdf ↗

The paper examines the stability of a specific flow on complex manifolds.

problem Stability of line bundle mean curvature flow on complex manifolds.
method Analyzes the convergence of the line bundle mean curvature flow to a deformed Hermitian-Yang-Mills metric.
result The flow converges exponentially to the deformed Hermitian-Yang-Mills metric in the CC^\infty sense.

In this article we develop a new approach to the problem of the stability of locally conformally Kähler structures (l.c.k structures) under small deformations of complex structures and deformations of flat line bundles. We show that under the certain cohomological condition the stability of l.c.k structures does hold. …

2010-12-10abs ↗pdf ↗

Unified framework connects deformation theory and derived categories for multiparameter persistence.

problem Algebraic complexity of multiparameter persistence modules hinders classification, stability, and interpretability.
method Combines deformation theory and derived categories to study multiparameter persistence geometrically.
result Unified conjecture relating interleaving distance to derived convolution metrics established.

Study shows curvature stability under smooth metric convergence.

problem Stability of nonnegative isotropic curvature under metric deformations.
method Introduced method by R. Bamler to study scalar curvature behavior.
result Proved that if metrics converge in C0 norm, resulting metric has isotropic curvature bounded from below.

Study on deformation of weighted scalar curvature, proving geometric results and stability.

problem Deformation of weighted scalar curvature and related geometric properties.
method Linearization of weighted scalar curvature, studying kernel of formal adjoint.
result Definition and study of weighted vacuum static spaces, stability results on flat spaces.

Geometric interpretation of Fock-Goncharov positivity and disk stabilization in symmetric space.

problem Understanding Fock-Goncharov positivity and its geometric implications.
method Geometric interpretation and bending deformations of Fuchsian representations.
result Stabilization of a uniform Finsler quasi-convex disk in the symmetric space.

Study on stability of quaternion-Kähler manifolds using eigenvalue estimates.

problem Stability problem for positive quaternion-Kähler manifolds.
method Description of infinitesimal Einstein deformations and destabilising directions in terms of Laplace eigenfunctions and symmetric 2-tensors. Improved eigenvalue estimates for the Hodge-Laplacian on 2-forms.
result Sharp lower bound for the first non-zero eigenvalue on the parallel subbundle Sym^2 E of the 2-form bundle.

In these notes we give a shortened and more direct proof of Goto's generalized Kaehler stability theorem stating that if (J_1,J_2) is a generalized kaehler structure for which J_2 is determined by a nowhere vanishing closed form, then small deformations of J_1 can be coupled with small deformations of J_2 so that the p…

2012-06-10abs ↗pdf ↗

The paper studies deformations of Kundt metrics using nil-Killing vector fields.

problem Deformations of Kundt metrics in the direction of type III tensors.
method Characterizations within the Kundt class using nil-Killing vector fields.
result Theorem classifying algebraic stability of tensors and sufficient criteria for preserving spi's.

Paper confirms conjecture for projective manifolds in supercritical phase.

problem Stability condition for deformed Hermitian-Yang-Mills equation.
method Establishes stability result not involving uniform constants.
result Confirms conjecture for projective manifolds in supercritical phase.

Study on deformations of (p,q)(p,q)-forms and spectral sequence degenerations.

problem Understanding deformations of (p,q)(p,q)-forms under complex structure changes.
method Analyzing Frölicher spectral sequence conditions for (p,q)(p,q)-form deformations.
result Unobstructed deformations of (p,q)(p,q)-forms under specific spectral sequence conditions.

In this paper, we study deformations of compact holomorphic Poisson submanifolds which extend Kodaira's series of papers on semi-regularity (deformations of compact complex submanifolds of codimension 1), deformations of compact complex submanifolds of arbitrary codimensions, and stability of compact complex submanifol…

2015-08-15abs ↗pdf ↗

For each g greater than one there is a 3-manifold with two genus g Heegaard splittings that require g stabilizations to become equivalent. Previously known examples required at most one stabilization. Control of families of Heegaard surfaces is obtained through a deformation to harmonic maps.

2008-02-15abs ↗pdf ↗

The paper generalizes SKT and HS properties to arbitrary p and studies their deformation stability.

problem Studying deformation stability of p-SKT and p-HS manifolds.
method Introducing p-hermitian-symplectic and p-pluriclosed manifolds, proving equivalence and deformation openness on ∂∂-manifolds.
result The cones of Aeppli cohomology classes of strictly weakly positive (p,p)-forms are equal on the limit fibre under certain assumptions.

Minimal Lagrangians in certain curved spaces are stable under specific flows.

problem Stability of minimal Lagrangians in Kähler-Einstein manifolds of non-positive curvature.
method Proved stability under Lagrangian mean curvature flow.
result Equivalence between linear and dynamical stability for C1C^1-close Lagrangians.