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arXiv research

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.

168,695 papers · 148 categories

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19385675 · May 202619922001200920172026
48 results for Hodge splitting

We construct Hodge filtered function spaces associated to infinite loop spaces. For Brown-Peterson cohomology, we show that the corresponding Hodge filtered spaces satisfy an analog of Wilson's unstable splitting. As a consequence, we obtain an analog of Quillen's theorem for Hodge filtered Brown-Peterson cohomology fo…

2016-10-25abs ↗pdf ↗

Study describes splitting and filtration of Hodge bundle on quadratic differentials.

problem Understanding the structure of Hodge bundles on quadratic differentials.
method Harder-Narasimhan filtration and splitting as direct sum of line bundles.
result Determine all Lyapunov exponents of algebraically primitive Teichmüller curves.

We prove that affine invariant manifolds in strata of flat surfaces are algebraic varieties. The result is deduced from a generalization of a theorem of Möller. Namely, we prove that the image of a certain twisted Abel-Jacobi map lands in the torsion of a factor of the Jacobians. This statement can be viewed as a split…

2013-11-11abs ↗pdf ↗

Study on Kähler manifolds with non-negative mixed curvature, proving splitting and structure theorems.

problem Investigating properties of Kähler manifolds with specific curvature conditions.
method Conformal perturbation method.
result Established structure and splitting theorems for Kähler manifolds with non-negative mixed curvature.

The paper studies cyclic covers of rational surfaces and their Hodge structures.

problem Understanding the Hodge structures of cyclic covers of rational surfaces.
method Generalization of Esnault-Viehweg method to analyze monodromy actions.
result The monodromy action splits into direct sums for specific cyclic covers.

A new method splits surface flow discretizations into streamfunctions and harmonic fields.

problem Discretizing incompressible flows on surfaces with pressure and saddle-point structure.
method Discrete Helmholtz-Hodge decomposition for BDM elements on surfaces.
result Eliminates pressure and saddle-point structure, ensuring exact tangentiality and divergence-freeness.

In this paper we show that, after completion in the I-adic topology, the Goldman bracket on the space spanned by homotopy classes of loops on a smooth, complex algebraic curve is a morphism of mixed Hodge structure. We prove similar statements for the natural action (defined by Kawazumi and Kuno) of the loops in X on p…

2017-10-17abs ↗pdf ↗

Decomposes financial networks to reveal cause-effect hierarchies during crises.

problem Complex financial networks are hard to interpret due to Granger causality.
method Helmholtz-Hodge-Kodaira decomposition to separate networks into rotational and gradient components.
result Precious metals and pharmaceutical products are identified as causal drivers during crises.

Recent years have witnessed a trend that advanced mathematical tools, such as algebraic topology, differential geometry, graph theory, and partial differential equations, have been developed for describing biological macromolecules. These tools have considerably strengthened our ability to understand the molecular mech…

2019-08-01abs ↗pdf ↗

Study low energy resolvent behavior on fibred boundary metrics.

problem Analyze the resolvent of Hodge Laplacian on manifolds with fibred boundary metrics.
method Develop a 'split' pseudodifferential calculus to handle different asymptotic behaviors.
result Precise asymptotic behavior of resolvent as a fibred boundary pseudodifferential operator.

Study numerically flat foliations on Kähler manifolds, proving new splitting theorems.

problem Understanding foliations with numerically flat tangent bundles on Kähler manifolds.
method Analyzing the structure of foliations on compact Kähler manifolds, extending earlier results.
result Smooth foliations with numerically flat tangent bundles induce a decomposition of the ambient manifold's tangent bundle.

On a compact ˉ\partial\bar\partial-manifold XX, one has the Hodge decomposition: the de Rham cohomology groups split into subspaces of pure-type classes as HdRk(X)=p+q=kHp,q(X)H_{dR}^k (X)=\oplus_{p+q=k}H^{p,\,q}(X), where the Hp,q(X)H^{p,\,q}(X) are canonically isomorphic to the Dolbeault cohomology groups Hˉp,q(X)H_{\bar\partial}^{p,\,q}(X). F…

2020-01-07abs ↗pdf ↗

In this paper we introduce the notion of Poincaré DGCAs of Hodge type, which is a subclass of Poincaré DGCAs encompassing the de Rham algebras of closed orientable manifolds. Then we introduce the notion of the small algebra and the small quotient algebra of a Poincaré DGCA of Hodge type. Using these concepts, we inves…

2019-02-22abs ↗pdf ↗

The Dirac operator d+delta on the Hodge complex of a Riemannian manifold is regarded as an annihilation operator A. On a weighted space L_mu^2 Omega, [A,A*] acts as multiplication by a positive constant on excited states if and only if the logarithm of the measure density of mu satisfies a pair of equations. The equati…

2001-04-17abs ↗pdf ↗

We determine the structure of the Hodge ring, a natural object encoding the Hodge numbers of all compact Kaehler manifolds. As a consequence of this structure, there are no unexpected relations among the Hodge numbers, and no essential differences between the Hodge numbers of smooth complex projective varieties and tho…

2012-02-13abs ↗pdf ↗

Novel Hodge theory developed for Carrollian bundles, addressing black hole event horizons.

problem Developing Hodge theory on Carrollian bundles with degenerate metrics.
method Constructing Hodge star and Laplacian operators on Carrollian Rimes\mathbb{R}^ imes-bundles.
result Hodge--de Rham Laplacian defined on event horizons of Schwarzschild black holes.

Resolves conjectures on non-abelian Hodge loci for quasi-projective varieties.

problem Understanding non-abelian Hodge loci for quasi-projective varieties.
method Analyzes Z\mathbb{Z}-local systems and polarized variations of Hodge structures.
result Proves algebraicity of non-abelian Hodge loci for Q\mathbb{Q}-anisotropic monodromy.

Proves a tropical version of Clemens-Schmid sequence for tropical varieties.

problem Existence of tropical cycles with specific cohomology classes.
method Tropical Hodge theory and Clemens-Schmid sequence analogy.
result Proves tropical Hodge conjecture for rationally triangulable varieties.

For any positive integer m and any dimension n, we show that any n-dimensional Hodge diamond with values in Z/mZ is attained by the Hodge numbers of an n-dimensional smooth complex projective variety. As a corollary, there are no polynomial relations among the Hodge numbers of n-dimensional smooth complex projective va…

2019-03-13abs ↗pdf ↗

The paper proves formulas and theorems for statistical de Rham Hodge operators on manifolds with boundary.

problem Formulating Lichnerowicz type formulas and Kastler-Kalau-Walze theorems for statistical de Rham Hodge operators.
method Developed Lichnerowicz type formulas and proved Kastler-Kalau-Walze type theorems for statistical de Rham Hodge operators on compact manifolds with boundary.
result Proved Lichnerowicz type formulas and Kastler-Kalau-Walze type theorems for statistical de Rham Hodge operators on compact manifolds with boundary.

We consider the geometric properties of Hodge Cousin groups, introduced in an unpublished paper \cite{OVV}, emphasizing the case of Hodge Cousin groups corresponding to polarized Q\mathbb{Q}-Hodge structures. Basing on this consideration, we introduce the class of abelian Cousin groups and prove an analogue of Poincar…

2016-10-20abs ↗pdf ↗

The paper studies perturbations of de Rham Hodge operators on manifolds with or without boundaries.

problem Analyzing perturbations of de Rham Hodge operators on manifolds with boundaries.
method Lichnerowicz type formulas and Kastler-Kalau-Walze type theorems for 4D and 6D compact manifolds with or without boundaries.
result Proves Kastler-Kalau-Walze type theorems for perturbations of de Rham Hodge operators on 4D and 6D manifolds with or without boundaries.

For any symmetric collection of natural numbers h^{p,q} with p+q=k, we construct a smooth complex projective variety whose weight k Hodge structure has these Hodge numbers; if k=2m is even, then we have to impose that h^{m,m} is bigger than some quadratic bound in m. Combining these results for different weights, we so…

2013-01-03abs ↗pdf ↗

Study Hodge-de Rham numbers for almost complex 4-manifolds, extending properties from complex surfaces.

problem Understanding Hodge-de Rham numbers for almost complex 4-manifolds.
method Introduced and studied Hodge-de Rham numbers, extending properties from complex surfaces.
result All Hodge-de Rham numbers for compact almost complex 4-manifolds are determined by the cohomology, except for one (the irregularity).

The paper broadens a mathematical correspondence to include more balanced metrics.

problem Extending a mathematical correspondence to a broader class of metrics.
method Using key observations and known theorems to apply results to a new class of metrics.
result The known results can be applied to a larger class of metrics, including those arising from multipolarizations.

Study examines LpL^p-boundedness of Hodge projection on manifolds with ends.

problem Understanding LpL^p-boundedness of Hodge projection on manifolds with ends.
method Investigates the relationship between Hodge projection, Riesz transform, and bounded harmonic functions.
result Connects LpL^p-boundedness of Hodge projection to the structure of L2L^2 harmonic one-forms and bounded harmonic functions.

Geometric structures on 5-manifolds from surface group representations of G2'.

problem Constructing geometric structures on 5-manifolds from G2'-surface group representations.
method Using Higgs bundles and partial flag manifolds of G2' to construct geometric structures.
result Developing maps of geometric structures are the domain of discontinuity.

Smooth bundles with rough data maintain Hodge kernel isomorphism.

problem Maintaining Hodge kernel isomorphism for smooth bundles with non-smooth geometric data.
method Analyzing nilpotent differential operators and Hodge-Dirac-type operators under perturbations of geometric data.
result Kernels of Hodge-Dirac operators remain isomorphic under uniform perturbations of geometric data.

This paper generalizes L2 cohomology theory for complex manifolds.

problem Developing a L2 cohomology theory for Hodge modules on infinite covering spaces.
method Formulating a conjectural generalization of L2-Mixed Hodge structures using Saito's Mixed Hodge Modules.
result Partial results in the conjectural generalization of L2-Mixed Hodge structures.