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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 deformed Hermitian Yang-Mills

Paper proves solutions for deformed Hermitian-Yang-Mills equation on almost Hermitian manifolds.

problem Existence of solutions for deformed Hermitian-Yang-Mills equation on almost Hermitian manifolds.
method Derive a priori estimates under the existence of an admissible C\mathcal{C}-subsolution; prove existence of solutions under the condition of existence of a supersolution.
result Proves existence of solutions for the deformed Hermitian-Yang-Mills equation.

Study on a deformed Hermitian-Yang-Mills equation on compact Kähler manifolds.

problem Existence of solutions to the hypercritical deformed Hermitian-Yang-Mills equation.
method Introduce coerciveness and properness of the J-functional on almost calibrated (1,1)-forms.
result Equivalence of coerciveness and properness to the existence of solutions.

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.

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.

The paper examines inequalities for Chern numbers on specific 4D Kähler manifolds.

problem Investigating Chern number inequalities on 4D Kähler manifolds with deformed Hermitian-Yang-Mills metrics.
method Analyzing 4D Kähler manifolds with deformed Hermitian-Yang-Mills metrics under the condition θ^(π,2π)\hatθ\in (π,2π).
result Established Chern number inequalities for the specified 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.

The paper proves conditions for solutions of JJ-equation and deformed Hermitian-Yang-Mills equation on holomorphic submersions.

problem Conditions for existence of solutions of JJ-equation and deformed Hermitian-Yang-Mills equation on holomorphic submersions.
method Adiabatic limit technique
result Conditions for existence of solutions of JJ-equation and deformed Hermitian-Yang-Mills equation on holomorphic submersions.

Paper proves solvability condition for complex equation on special submanifolds.

problem Solvability condition for supercritical deformed Hermitian-Yang-Mills equation.
method Used integrals on subvarieties to provide necessary and sufficient condition.
result Confirms mirror version of Thomas-Yau conjecture about special Lagrangian submanifolds.

Solves supercritical dHYM on projective manifolds with specific conditions.

problem Solving supercritical deformed Hermitian Yang-Mills equation on compact projective manifolds.
method Extends Gao Chen's result to non-constant twisting functions, proving solvability under certain conditions.
result Solvability of the twisted supercritical dHYM equation on compact projective manifolds.

The paper studies deformations of Hermitian Yang-Mills and Donaldson-Thomas connections on G2G_2-manifolds.

problem Deformation theory of connections on G2G_2-manifolds.
method Introducing new coclosed G2G_2-structures and analyzing elliptic complexes.
result Moduli spaces of connections are shown to be tori under certain conditions.

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.

Paper generalizes sub-slope definition and solves complex equations on compact manifolds.

problem Solving complex equations on compact almost Hermitian manifolds.
method Generalized sub-slope definition and proved existence of solutions for a class of equations.
result Solved complex Hessian quotient and deformed Hermitian-Yang-Mills equations.

In this paper, we study the deformed Hermitian-Yang-Mills equation on compact Kähler manifold with non-negative orthogonal bisectional curvature. We prove that the curvatures of deformed Hermitian-Yang-Mills metrics are parallel with respect to the background metric if there exists a positive constant CC such that $-\…

2019-09-19abs ↗pdf ↗

The paper confirms the solvability of a complex equation for a 4D manifold.

problem Solvability of a deformed Hermitian--Yang--Mills equation on a 4D Kähler manifold.
method Used eigenvalues and topological constants to prove the existence of a C-subsolution.
result The existence of a C-subsolution implies the solvability of the deformed Hermitian--Yang--Mills equation when the complex dimension is 4 and θ is close to π.

Proves existence and uniqueness of weak solutions for specific equations.

problem Existence and uniqueness of solutions for generalized Monge-Ampère and deformed Hermitian-Yang-Mills equations.
method Combines viscosity-theoretic and pluripotential-theoretic techniques.
result Existence and uniqueness of weak solutions in boundary cases.

Paper establishes estimates for nonlinear equations on compact manifolds.

problem Estimating solutions to fully nonlinear equations with gradient terms on compact almost Hermitian manifolds.
method Establishes second order estimates and proves existence of solutions for specific equations.
result Proves existence of solutions for various equations, including Monge-Ampère and Hessian equations.

The note proves a metric equivalence for stable bundles on surfaces.

problem Understanding stability conditions and metrics on complex projective surfaces.
method Analyzing stability in the large scaling limit and proving equivalence with deformed Hermitian-Yang-Mills metrics.
result Equivalence of stability and deformed Hermitian-Yang-Mills metrics for smooth projective surfaces.

Introduces new equations linking Kähler-Einstein and Hermitian-Yang-Mills theories.

problem Existence of solutions to coupled Kähler-Einstein and Hermitian-Yang-Mills equations.
method Moment map interpretation, Futaki invariant, Matsushima-Lichnerowicz theorem, deformation results.
result Nontrivial solutions produced under certain conditions.

We provide an introduction to the mathematics and physics of the deformed Hermitian-Yang-Mills equation, a fully nonlinear geometric PDE on Kahler manifolds which plays an important role in mirror symmetry. We discuss the physical origin of the equation, and some recent progress towards its solution. In dimension 3 we …

2017-12-04abs ↗pdf ↗

We prove an existence result for the deformed Hermitian Yang-Mills equation for the full admissible range of the phase parameter, i.e., θ^(π2,3π2)\hatθ \in (\fracπ{2},\frac{3π}{2}), on compact complex three-folds conditioned on a necessary subsolution condition. Our proof hinges on a delicate analysis of a new continuity path …

2019-10-04abs ↗pdf ↗

We study weak geodesics in the space of potentials for the deformed Hermitian-Yang-Mills equation. The geodesic equation can be formulated as a degenerate elliptic equation, allowing us to employ nonlinear Dirichlet duality theory, as developed by Harvey-Lawson. By exploiting the convexity of the level sets of the Lagr…

2019-06-17abs ↗pdf ↗

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.

Proves solvability of general inverse σ_k equations with constant coefficients.

problem Solvability of general inverse σ_k equations with constant coefficients.
method Proves existence of unique solution if a C-subsolution exists.
result Confirms analytical conjecture for deformed Hermitian--Yang--Mills equation.

We introduce ZZ-critical connections for holomorphic vector bundles and prove their existence under stability conditions.

problem Existence of ZZ-critical connections for holomorphic vector bundles.
method Associated geometric PDEs to Bridgeland stability conditions and used infinite dimensional moment maps.
result In the large volume limit, a sufficiently smooth holomorphic vector bundle admits a ZZ-critical connection if and only if it is asymptotically ZZ-stable.

We prove a priori estimates for a generalised Monge-Ampère PDE with "non-constant coefficients" thus improving a result of Sun in the Kähler case. We apply this result to the deformed Hermitian Yang-Mills (dHYM) equation of Jacob-Yau to obtain an existence result and a priori estimates for some ranges of the phase angl…

2015-09-03abs ↗pdf ↗

We study and construct non-abelian hermitian Yang-Mills (HYM) instantons on Calabi-Yau cones. By means of a particular isometry preserving ansatz, the HYM equations are reduced to a novel Higgs-Yang-Mills flow on the Einstein-Kahler base. For any 2d-dimensional Calabi-Yau cone, we find explicit solutions of the flow eq…

2009-10-06abs ↗pdf ↗

The paper studies limits of flows on Kähler surfaces, proving convergence to solutions of equations.

problem Analyzing limits of flows on Kähler surfaces and their convergence to solutions of equations.
method Using a property of limits of viscosity subsolutions.
result Proves convergence of flows to weak solutions of the Monge-Ampère equation.

Investigates JJ-equation on holomorphic vector bundles over Kähler manifolds.

problem Analyzes properties and solutions of JJ-equation on holomorphic vector bundles.
method Introduces and studies JJ-equation, provides algebraic and numerical criteria.
result Provides an algebraic condition (asymptotic JJ-stability) and a numerical criterion for vortex bundles.

Let (X,ω)(X,ω) be a compact Kähler manifold of complex dimension nn and (L,h)(L,h) be a holomorphic line bundle over XX. The line bundle mean curvature flow was introduced in \cite{JY} in order to find deformed Hermitian-Yang-Mills metrics on LL. In this paper, we consider the stability of the line bundle mean curvature f…

2020-01-21abs ↗pdf ↗

The paper solves the dHYM equation on rational homogeneous varieties using Lie theory.

problem Solving the deformed Hermitian Yang-Mills equation on rational homogeneous varieties.
method Using Lie theory to describe the Lagrangian phase and characterize solutions.
result Characterization of all supercritical and hypercritical homogeneous solutions of the dHYM equation.

Proves stability of certain vector bundles on Kähler surfaces.

problem Stability of rank 2 holomorphic vector bundles on Kähler surfaces.
method Proves existence of ZZ-positive and ZZ-critical metrics leading to bundle stability.
result Proves stability results for deformed Hermitian Yang-Mills and almost Hermite-Einstein equations for rank 2 bundles.

Introduces a new PDE involving differential forms for Kähler geometry.

problem Solving a unified PDE for various important equations in Kähler geometry.
method Introduces a fully nonlinear PDE with differential form Λ and proves solvability conditions.
result Generalizes previous works and proves a conjecture for the dHYM equation.

The paper studies conditions for graphs connecting level sets of harmonic polynomials.

problem Conditions for graphs connecting level sets of harmonic polynomials.
method Algebraic properties and Kempf-Ness functional construction.
result Stability condition equivalent to the existence of a solution to the deformed Hermitian-Yang-Mills equation.

The paper studies singularities in a complex flow related to mean curvature.

problem Investigating singularities in a complex flow related to mean curvature.
method Constructing two distinct examples of singularities using the line bundle mean curvature flow.
result Found a finite time singularity, ruling out long time existence of the flow.

Characterizes solutions to Z-critical equations on surfaces using effective conditions.

problem Characterizing solutions to Z-critical equations on compact Kähler surfaces.
method Uses effective conditions and Picard number bounds to characterize solutions.
result Characterizes optimally destabilizing curves for Donaldson's J-equation and deformed Hermitian Yang-Mills equation.

Construct a Hermitian metric on non-Hermitian Yang--Mills moduli spaces near the Hermitian locus.

problem Moduli space of non-Hermitian Yang--Mills connections over a compact Kähler manifold
method Using normalized harmonic metrics
result Near the Hermitian locus, the unobstructed locus carries an almost hypercomplex structure compatible with the associated Riemannian metric.