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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.

168,742 papers · 148 categories

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25.0%50.0%75.0%100.0% · Jun 199319922001200920172026
48 results for non-Weinstein Liouville geometry

Study non-Weinstein Liouville geometry via hyperbolic dynamics, proving rigidity results.

problem Characterize non-Weinstein Liouville geometry with persistent transverse skeleton.
method Anosov 3-flows, Liouville Interpolation Systems, non-singular partially hyperbolic flows, hyperbolic dynamics.
result Mitsumatsu's examples characterize 4D non-Weinstein Liouville geometry with 3D persistent transverse skeleton.

Research proves the semi-classical limit of Liouville conformal field theory, describing deterministic geometry from random fluctuations.

problem Proving the semi-classical limit of Liouville conformal field theory.
method Probabilistic definition of Liouville theory, proving existence of semi-classical limit, defining classical stress-energy tensor.
result Existence and description of the semi-classical limit in terms of a massive Gaussian free field with Robin boundary conditions.

Liouville domains have become central objects in symplectic and contact geometry. However, the auxiliary data they involve --- namely, Liouville forms --- and the non-compactness of their completions generate some inconvenience. The notion of ideal Liouville domains is designed to suppress these awkward aspects and to …

2017-08-29abs ↗pdf ↗

Study Liouville theorems for harmonic maps along ancient super Ricci flows.

problem Proving Liouville theorems for harmonic maps under specific geometric conditions.
method Using Perelman's reduced geometric viewpoint, derive Liouville theorems with controlled growth.
result Sharp growth conditions and new Liouville theorems for both non-positively and positively curved target spaces.

In the present paper we prove Liouville-type theorems: non-existence theorems for conformal mappings of complete Riemannian manifolds. In addition, we give an application of these results to the theory of conharmonic transformations. A part of these results was announced in our reports on the conferences "Differential …

2016-08-04abs ↗pdf ↗

The paper proves Liouville-type theorems on Hadamard manifolds.

problem Non-existence of Killing-Yano tensors, Killing tensors, and harmonic symmetric tensors on Hadamard manifolds.
method Proofs use Liouville-type theorems on non-existence of subharmonic and harmonic functions on complete Riemannian manifolds, modified for Hadamard manifolds.
result Proves several Liouville-type theorems on Hadamard manifolds.

The Liouville symplectic form connects various moduli spaces in algebraic geometry.

problem Understanding connections between different moduli spaces in algebraic geometry.
method Using the Liouville symplectic structure on the cotangent bundle of a loop group.
result Induces symplectic structures on moduli stacks and spaces of framed connections.

The paper proves inequalities on Riemannian manifolds using a test function method.

problem Proving differential inequalities with (p,q)(p,q)-Laplacian on Riemannian manifolds.
method Using a test function argument.
result Established Liouville-type theorems under manifold's geometry and potential behavior.

We present the linearized metrizability problem in the context of parabolic geometries and subriemannian geometry, generalizing the metrizability problem in projective geometry studied by R. Liouville in 1889. We give a general method for linearizability and a classification of all cases with irreducible defining distr…

2018-03-28abs ↗pdf ↗

In this paper we generalize the main notions from the geometry of (almost) contact manifolds in the category of Lie algebroids. Also, using the framework of generalized geometry, we obtain an (almost) contact Riemannian Lie algebroid structure on a vertical Liouville distribution over the big-tangent manifold of a Riem…

2015-07-04abs ↗pdf ↗

On a complete Riemannian manifold M with Ricci curvature satisfying Ric(r,r)Ar2(logr)2(log(logr))2...(logkr)2\textrm{Ric}(\nabla r,\nabla r) \geq -Ar^2(\log r)^2(\log(\log r))^2...(\log^{k}r)^2 for r1r\gg 1, where A>0 is a constant, and r is the distance from an arbitrarily fixed point in M. we prove some Liouville-type theorems for a C^2 function $f:M\ri…

2010-11-06abs ↗pdf ↗

The paper develops quaternionic toric geometry and classifies local actions.

problem Classifying local quaternionic torus actions on manifolds.
method Develops local QnQ^n-actions, introduces invariants, and studies tetraplectic structures.
result Classifies local quaternionic torus actions up to homeomorphism.

Study of Lagrangian submanifolds with Riemannian bounds and their metric properties.

problem Understanding the geometry and topology of Lagrangian submanifolds with Riemannian constraints.
method Investigation of metric properties and symplectic structures on spaces of Lagrangian submanifolds with uniform Riemannian bounds.
result There are at most countably many Hamiltonian isotopy classes of exact Lagrangian submanifolds in a Liouville manifold.

Extends integrability to cosymplectic manifolds.

problem Integrability of Hamiltonian systems on cosymplectic manifolds.
method Extended Arnold-Liouville and noncommutative integrability to cosymplectic manifolds, proved a variant of non-commutative integrability for specific fields, constructed action-angle variables.
result Variant of non-commutative integrability for evaluation and Reeb vector fields on cosymplectic manifolds.

We consider a complete noncompact smooth metric measure space (Mn,g,efdv)(M^n,g,e^{-f} dv) and the associated drifting Laplacian. We find sufficient conditions on the geometry of the space so that every nonnegative ff-subharmonic function with bounded weighted L1L^1 norm is constant.

2014-02-25abs ↗pdf ↗

The paper explores the L1L^1-Liouville property on graphs and its connections to stochastic completeness.

problem Investigating the L1L^1-Liouville property on graphs and its implications.
method Characterization of L1L^1-Liouville property in terms of Green function, equivalence with stochastic completeness, and comparison theorems based on inner-outer curvatures.
result Equivalence of L1L^1-Liouville property and stochastic completeness on model graphs, and introduction of Dirichlet L1L^1-Liouville property.

We relate the existence of many infinite geodesics on Alexandrov spaces to a statement about the average growth of volumes of balls. We deduce that the geodesic flow exists and preserves the Liouville measure in several important cases. The developed analytic tool has close ties to integral geometry.

2017-05-12abs ↗pdf ↗

We give exposition of a Liouville theorem established in \cite{Li3} which is a novel extension of the classical Liouville theorem for harmonic functions. To illustrate some ideas of the proof of the Liouville theorem, we present a new proof of the classical Liouville theorem for harmonic functions. Applications of the …

2006-09-14abs ↗pdf ↗

Study explores Liouville's theorem and SLP for harmonic functions on cones and surfaces.

problem Investigating Liouville's theorem and SLP for harmonic functions on Riemannian cones and surfaces.
method Reinterprets classical Liouville property in terms of radial eigenfunctions, providing explicit estimates and constructing examples.
result Explicit estimates for slowest-growing nonconstant harmonic functions and a unified geometric perspective on Liouville phenomena.

We construct a path integral based on the coupling of the Liouville action and the Mabuchi K-energy on a one-dimensional complex manifold. To the best of our knowledge this is the first rigorous construction of such an object and this is done by means of probabilistic tools. Both functionals play an important role resp…

2018-07-04abs ↗pdf ↗

Enhances conformal geometry in higher dimensions with infinite-dimensional algebra.

problem Finite-dimensional group of conformal transformations in higher dimensions.
method Derived deformation theory of ambitwistor space of complex null-geodesics.
result Infinite-dimensional dg-Lie algebra incorporating symmetries and conformal structure deformations.

We observe that, in dimension four, symplectic forms may be obtained via Lorentzian geometry; in particular, null vector fields can give rise to exact symplectic forms. That a null vector field is nowhere vanishing yet orthogonal to itself is essential to this construction. Specifically, we show that on a Lorentzian 4-…

2015-04-24abs ↗pdf ↗

This work generalizes Hamiltonian mechanics using closed differential forms.

problem Hidden invariants in classical Hamiltonian mechanics.
method Establishes a novel correspondence between generalized Hamiltonian mechanics and multisymplectic geometry.
result Key theorems linking classical and generalized Hamiltonian systems.

A 'Liouville structure' is a structure isomorphic to a cotangent vector fibration. A Liouville structure is an essential ingredient of every variational formulation of a physical theory. For reasons of interpretation the Liouville structure can not be replaced by the corresponding cotangent fibration. We give a precise…

2008-06-08abs ↗pdf ↗

We study simple root flows and Liouville currents for Hitchin representations. We show that the Liouville current is associated to the measure of maximal entropy for a simple root flow, derive a Liouville volume rigidity result, and construct a Liouville pressure metric on the Hitchin component.

2017-08-04abs ↗pdf ↗

Gradient Ricci solitons can be extended to non-gradient Ricci solitons using energy function.

problem Extending the geometry of gradient Ricci solitons to non-gradient Ricci solitons.
method Using energy function EE to study the geometry.
result A non-steady Ricci soliton with symmetric covariant derivative is gradient.