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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.

169,291 papers · 148 categories

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3587161,0731,431 · Jun 202019922001200920182026
48 results for logarithmic model

Introduces logarithmic Cartan geometry on complex manifolds with singularities.

problem Holomorphic Cartan geometry with singularities.
method Definition and study of logarithmic Cartan geometry on complex manifolds with polar part supported on a normal crossing divisor.
result Push-forward of a Cartan geometry constructed using a finite Galois ramified covering is a logarithmic Cartan geometry.

We construct helicoid-like embedded minimal disks with axes along self-similar curves modeled on logarithmic spirals. The surfaces have a self-similarity inherited from the curves and the nature of the construction. Moreover, inside of a "logarithmic cone", the surfaces are embedded.

2014-04-28abs ↗pdf ↗

Power-law model outperforms logarithmic model in estimating stock and warrant price impacts.

problem Estimating immediate price impacts of stock and warrant orders.
method Used order flow data to estimate price impacts using power-law and logarithmic models.
result Power-law model outperforms logarithmic model in robustness and forecasting accuracy.

Logarithmic-time schedules boost large-scale language model training efficiency.

problem Improving performance and efficiency in large-scale language model training.
method Designing time-varying hyperparameters (β1,β2,λ)(β_1, β_2, λ) for AdamW, specifically logarithmic-time scheduling with damping mechanisms.
result ADANA optimizer achieves up to 40% compute efficiency compared to tuned AdamW, with gains persisting as model scale increases.

WaveletNet improves edge device efficiency with logarithmic convolution.

problem Efficiency and performance on edge devices for CNNs.
method Introduces WaveletNet architecture with wavelet convolution and depthwise fast wavelet transform.
result WaveletNet achieves superior and comparable performance to state-of-the-art models on CIFAR-10 and ImageNet.

New method solves ˉ\bar{\partial}-equations for logarithmic forms on Kahler manifolds.

problem Solving ˉ\bar{\partial}-equations for logarithmic forms on Kahler manifolds.
method Using harmonic integral theory for currents on Kahler manifolds.
result Constructs the extension for logarithmic (n,q)(n,q)-forms on the central fiber.

Study excess logarithmic residues for foliations to bound invariant hypersurfaces and test log canonicity.

problem Bounding invariant hypersurfaces and testing log canonicity of singularities.
method Introduce excess logarithmic residues, prove residue formula, derive Poincaré-type bound, and use them to recover log discrepancies.
result Componentwise logarithmic residues of a lifted foliation along the exceptional divisor recover log discrepancies of singularities.

Logarithmic connections on principal bundles over normal varieties are studied.

problem Existence and properties of logarithmic connections on principal bundles over normal varieties.
method Introducing logarithmic connections, showing equivalence to covariant derivatives, and proving existence conditions.
result Existence of logarithmic connections on principal bundles over normal varieties is equivalent to certain conditions on the associated vector bundles and adjoint bundles.

Study real logarithms of semi-simple matrices, focusing on differential structure.

problem Understanding the differential structure of real logarithms of semi-simple matrices.
method Examines the differential structure of real logarithms of semi-simple matrices under specific matrix types.
result Characterizes the differential structure of real logarithms of semi-simple matrices.

Logarithmic separation profile in hyperbolic groups shows hierarchical structure.

problem Understanding hierarchical structure in hyperbolic groups with logarithmic separation.
method Proving groups with logarithmic separation split over cyclic groups and providing counterexamples.
result Not all groups with hierarchical structure have logarithmic separation profile.

Paper uses ABP method to prove logarithmic Sobolev inequalities on curved spaces.

problem Proving logarithmic Sobolev inequalities on manifolds with nonnegative curvature.
method Employing the ABP method developed by Brendle.
result Sharp L2L^2 and LpL^p logarithmic Sobolev inequalities established.

The paper constructs a Saito basis for a specific class of divisors and applies it to logarithmic Poisson geometry.

problem Investigating a class of non-quasi-homogeneous free divisors and their logarithmic vector fields.
method Explicitly constructing a Saito basis for the module of logarithmic vector fields and applying it to logarithmic Poisson geometry.
result The construction of the Saito basis and the Lie-Rinehart algebra structure on the sheaf of logarithmic 1-forms.

Functorial correspondence found between logarithmic connections and abelian connections.

problem Establishing a relationship between logarithmic sl2\mathfrak{sl}_2-connections and abelian connections.
method Constructing inverse functors and a canonical cocycle.
result Functorial correspondence proved between logarithmic sl2\mathfrak{sl}_2-connections and abelian connections.

The paper analyzes competition among fund managers using excess logarithmic returns and constructs games to find optimal allocations.

problem Optimal allocation strategies among fund managers considering excess logarithmic returns.
method Constructs both nn-player and mean field games to address the competition problem.
result The MFE of the MFG represents the limit of nn-player game's equilibrium as nn approaches infinity.

Study of conformal logarithmic Laplacian on sphere, connecting Yamabe problems and Sobolev spaces.

problem Yamabe-type problems and Sobolev spaces on the sphere.
method Detailed spectral analysis, conformal invariance, and Hilbert space introduction.
result Established precise connection between sphere and \(\mathbb{R}^N\) logarithmic Laplacian.

In this work, we give a formula for the logarithmic invariant of knots in terms of certain derivatives of the colored Jones invariant. This invariant is related to the logarithmic conformal field theory, and was defined by using the centers in the radical of the restricted quantum group at root of unity. A relation bet…

2014-06-05abs ↗pdf ↗

Logarithmic regret achieved in RL with linear function approximation.

problem Achieving logarithmic regret in reinforcement learning with linear function approximation.
method LSVI-UCB for linear MDP assumption, UCRL-VTR for linear mixture MDP assumption.
result Logarithmic regret bounds established for RL with linear function approximation.

Paper finds necessary condition for logarithmic Minkowski problem in higher dimensions.

problem Logarithmic Minkowski problem in higher dimensions.
method Established a necessary condition through generalization and refinement of previous work.
result Generalizes and refines necessary condition for logarithmic Minkowski problem.

Bandit algorithms struggle with consistent performance and robustness.

problem Achieving consistent and robust performance in stochastic multi-armed bandit settings.
method Analyzing regret minimization trade-offs and proposing distribution-oblivious algorithms.
result Logarithmic regret is inconsistent and super-logarithmic regret is necessary for consistent learning.

Solves a discrete logarithmic Minkowski problem for electrostatic p-capacity.

problem Characterize measures generated by electrostatic p-capacity.
method Solves the discrete logarithmic Minkowski problem for 1 < p < n.
result Solves the discrete logarithmic Minkowski problem for measures in general position.

Formula for foliations' singularities in complex projective spaces.

problem Counting singularities of foliations on complex projective spaces.
method Global residue formula for logarithmic indices of foliations with isolated singularities.
result Formula for the number of singularities in the complement of the invariant divisor on complex projective spaces.

Logarithmic Sobolev inequality proven for non-compact self-shrinkers.

problem Establishing a logarithmic Sobolev inequality for non-compact self-shrinkers.
method Using Alexandrov-Bakelman-Pucci (ABP) method to prove the inequality for Euclidean space, then applying this method to non-compact self-shrinkers.
result Optimal logarithmic Sobolev inequality for complete, non-compact, properly embedded self-shrinkers.

We generalize Demailly's construction of projective jet bundles and strictly negatively curved pseudometrics on them to the logarithmic case. We establish this logarithmic generalization explicitly via coordinates, just as Noguchi's generalization of the jets used by Green-Griffiths. As a first application, we give a m…

2000-01-17abs ↗pdf ↗

Logarithmic connections on complex manifolds with trivial tangent bundle.

problem Finding logarithmic connections on complex manifolds with specific properties.
method Analyzing holomorphic Cartan geometries and their connections.
result Logarithmic connections preserve holomorphic Cartan geometries.

New Poisson bracket connects to logarithmic manifolds.

problem Constructing a new Poisson bracket compatible with existing structures.
method Developed a new local Poisson bracket compatible with Adler-Gelfand-Dickey brackets, leading to a dispersionless limit.
result Leading term defines a logarithmic Dubrovin-Frobenius manifold.

Study logarithmic flat connections on principal bundles using Lie groupoids.

problem Classify flat connections on principal bundles with logarithmic singularities.
method Use tools from Lie groupoid theory to classify representations and establish van Kampen theorems.
result Obtain a functorial Riemann-Hilbert correspondence for logarithmic connections.

Proves non-positivity of Hirzebruch form on stable weights and connects to flat logarithmic connections.

problem Non-positivity of Hirzebruch form on stable weights
method Kempf--Ness and frame-potential inequality
result Zero locus of Hirzebruch form on stable weights corresponds to flat logarithmic connections

The study of logarithmic fields associated with nilmanifolds and their singularities.

problem Understanding logarithmic fields associated with nilmanifolds and their singularities.
method Building a module of an affine Kac Moody vertex algebra and associating logarithmic fields to it.
result Fields associated with specific nilmanifolds have tri-logarithm singularities.

Through the main example of the Ornstein-Uhlenbeck semigroup, the Bakry-Emery criterion is presented as a main tool to get functional inequalities as Poincaré or logarithmic Sobolev inequalities. Moreover an alternative method using the optimal mass transportation, is also given to obtain the logarithmic Sobolev inequa…

2010-09-17abs ↗pdf ↗

Study of foliations' geometric and topological structures.

problem Analyzing the geometric and topological properties of transversely affine foliations.
method Attach holonomy group and quotient stack, identify reparametrisations, classify them, and study the Kato-Nakayama space.
result Holonomy group controls the geometric part, while the Kato-Nakayama space captures the topological and dynamical aspects.