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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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481216 · Apr 202019922001200920172026
48 results for horizontal transmission

This paper uses deep reinforcement learning to automate electric transmission voltage control.

problem Automating voltage control in electric transmission systems.
method Deep reinforcement learning (DRL) applied to voltage control, with a novel DQN modification.
result DRL can automate voltage control at scale, but more research is needed.

This work interprets GELU and related activations via a first-order loss function.

problem Understanding and optimizing activation functions in neural networks.
method Complementary interpretation using the Gaussian first-order loss function.
result Calibrated or learned uniform-threshold gates are competitive and often outperform GELU, ReLU, and SiLU/Swish.

Linear problems appear in a variety of disciplines and their application for the transmission matrix recovery is one of the most stimulating challenges in biomedical imaging. Its knowledge turns any random media into an optical tool that can focus or transmit an image through disorder. Here, converting an input-output …

2019-01-15abs ↗pdf ↗

Transmission imaging, as an important imaging technique widely used in astronomy, medical diagnosis, and biology science, has been shown in [49] quite different from reflection imaging used in our everyday life. Understanding the structures of images (the prior information) is important for designing, testing, and choo…

2014-01-08abs ↗pdf ↗

Traders and investors involved in an option contract having the underlying stock in range bound are likely to lose their initial investment. Timing in buying an option contract is of capital importance. In a recent article [1] the hypothesis of range bound market is used in conjunction to Black-Scholes equation to find…

2013-07-23abs ↗pdf ↗

A Carnot group G\mathbb{G} admits Lusin approximation for horizontal curves if for any absolutely continuous horizontal curve γγ in G\mathbb{G} and ε>0\varepsilon>0, there is a C1C^1 horizontal curve ΓΓ such that Γ=γΓ=γ and Γ=γΓ'=γ' outside a set of measure at most ε\varepsilon. We verify this property for free Carno…

2016-02-08abs ↗pdf ↗

Defines conformal submersion with horizontal distribution and provides necessary conditions for its existence.

problem Existence and conditions for conformal submersion with horizontal distribution.
method Definition and analysis of conformal submersion with horizontal distribution, dual connections, and necessary conditions.
result Necessary and sufficient conditions for conformal submersion with horizontal distribution and geodesics.

The horizontal Laplacian of a Riemannian submersion with totally geodesic fibers and an integrable horizontal distribution.

problem Studying spectral properties of the horizontal Laplacian
method Interpreting the horizontal Laplacian as a twisted Laplacian acting on a flat vector bundle
result The horizontal Laplacian is unitarily equivalent to a twisted Laplacian acting on the space of sections of a certain infinite-rank flat vector bundle over the base manifold

In agreement with the recent research findings in the econophysics, we propose that the nonlinear dynamic chaos can be generated by the turbulent capital flows in both the quantitative easing transmission channels and the transaction networks channels, when there are the laminar turbulent capital flows transitions in t…

2013-05-24abs ↗pdf ↗

The paper studies critical points of horizontal energy functional in Riemannian foliations.

problem Analyzing critical points of horizontal energy functional in Riemannian foliations.
method Utilizing stress-energy tensor, establishing monotonicity formulas, and Jin-type theorems.
result Established monotonicity formulas for horizontally harmonic maps and transversally harmonic maps.

The study develops inequalities for Riemannian foliations without bundle-like assumptions.

problem Developing inequalities for Riemannian foliations without restrictive conditions.
method Bochner theory and Bakry-Emery calculus for horizontal Laplacians, derived explicit Bochner formulas, generalized curvature dimension inequalities.
result Established generalized curvature dimension inequalities for Riemannian foliations.

Affine and conformal submersions with horizontal distribution are studied in statistical manifolds.

problem Characterizing submersions and geodesics in statistical manifolds.
method Introducing conformal submersions with horizontal distribution and proving conditions for statistical manifold properties.
result Necessary and sufficient conditions for submersions and geodesics in statistical manifolds.

The complexity of horizontality in twistor spaces on tori is infinite.

problem Complexity of horizontality in twistor spaces on tori.
method Analyzing the complexity of horizontality in the twistor space associated with an oriented vector bundle over a torus.
result The complexity of horizontality in the twistor space is expressed by a dense subset of S2S^2 when it is infinite.

Novel method detects faults in helicopter transmissions using healthy data only.

problem Detecting faults in rare events in helicopter transmissions.
method Probabilistic anomaly detection using Bayesian measures.
result Method achieves competitive detection performance in real-world and benchmark applications.

We describe explicit open books on arbitrary plumbings of oriented circle bundles over closed oriented surfaces. We show that, for a non-positive plumbing, the open book we construct is horizontal and the corresponding compatible contact structure is also horizontal and Stein fillable. In particular, we describe horizo…

2005-09-26abs ↗pdf ↗

In this paper we adopt the pullback approach to global Finsler geometry. We investigate horizontally recurrent Finsler connections. We prove that for each scalar (ππ)1-form AA, there exists a unique horizontally recurrent Finsler connection whose hh-recurrence form is AA. This result generalizes the existence and u…

2017-06-19abs ↗pdf ↗

New model for STSs with restricted horizontal gluings, focusing on maximal horizontal cylinders.

problem Modeling STSs with specific horizontal restrictions.
method Modified model with conjugacy classes of permutations to restrict horizontal gluings.
result Asymptotic analysis of components, genus distribution, and saddle connections.

A new method for energy-efficient file delivery in small cell networks.

problem Efficient resource management in femto-caching with time-variant statistical properties.
method Formulates a resource allocation problem as a stochastic knapsack problem and a multi-armed bandit problem, developing solutions for each.
result The proposed method maximizes the accumulated utility over the horizon, especially suitable for networks with time-variant statistical properties.

We study maximal horizontal subgroups of Carnot groups of Heisenberg type. We classify those of dimension half of that of the canonical distribution ("lagrangians") and illustrate some notable ones of small dimension. An infinitesimal classification of the arbitrary maximal horizontal submanifolds follows as a conseque…

2005-09-26abs ↗pdf ↗

Examples of area-minimizing graphs with low regularity in a specific group.

problem Finding area-minimizing graphs with low regularity in a sub-Finsler Heisenberg group.
method Providing examples of entire area-minimizing horizontal graphs with prescribed singular sets.
result Examples of area-minimizing graphs that are locally Lipschitz but not necessarily smoother.

One of the biggest challenges in the field of biomedical imaging is the comprehension and the exploitation of the photon scattering through disordered media. Many studies have pursued the solution to this puzzle, achieving light-focusing control or reconstructing images in complex media. In the present work, we investi…

2019-03-13abs ↗pdf ↗

Study investigates FL performance over a noisy downlink, showing analog approach outperforms digital.

problem Impact of bandwidth-limited downlink on federated learning performance.
method Modelled downlink and uplink channels; proposed digital and analog downlink approaches; analyzed convergence behavior.
result Analog downlink approach provides significant improvement over digital approach, especially with biased data distribution.

The study examines constant mean curvature tubes around geodesics in specific 3-manifolds.

problem Investigating constant mean curvature surfaces in homogeneous 3-manifolds.
method Analyzing horizontal tubes foliating spaces under certain conditions.
result Horizontal tubes foliate spaces under specific curvature conditions.

Method calculates Z2\mathbb{Z}_2-Thurston norm for Seifert 3-manifolds using pseudo-horizontal surfaces.

problem Computing Z2\mathbb{Z}_2-Thurston norm for Z2\mathbb{Z}_2-homology classes in orientable Seifert 3-manifolds.
method Using pseudo-horizontal surfaces, we provide a necessary and sufficient criterion for their existence, calculate non-orientable genera, and develop an algorithm to compute the Z2\mathbb{Z}_2-Thurston norm.
result We successfully compute the Z2\mathbb{Z}_2-Thurston norm for every Z2\mathbb{Z}_2-homology class in orientable Seifert 3-manifolds.

By using the support function on the xyxy-plane, we show the necessary and sufficient conditions for the existence of envelopes of horizontal lines in the 3D-Heisenberg group. A method to construct horizontal envelopes from the given ones is also derived, and we classify the solutions satisfying the construction.

2018-01-13abs ↗pdf ↗

The paper characterizes gauge balls in the Heisenberg group by their curvature.

problem Identifying level sets of gauge norm in the Heisenberg group via horizontal mean curvature.
method Establishing a uniqueness result for horizontally umbilical hypersurfaces in the Heisenberg group.
result Uniqueness result in the Heisenberg group for horizontally umbilical hypersurfaces.

Extends Masur's divergence theorem to complex tori and Kummer surfaces.

problem Establishing uniquely ergodic horizontal foliations for geodesic flows on moduli spaces.
method Defined and calculated horizontal foliations and geodesic flows on moduli spaces of Kähler metrics.
result Proved that horizontal foliations are uniquely ergodic if geodesic flows are recurrent.

We generalise a result of Garofalo and Pauls: a horizontally minimal smooth surface embedded in the Heisenberg group is locally a (straight) ruled surface, i.e. it consists of straight lines tangent to a horizontal vector field along a smooth curve. We show additionally that any horizontally minimal surface is locally …

2012-12-23abs ↗pdf ↗