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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.

169,181 papers · 148 categories

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64129193257 · May 202619922001200920182026
48 results for interlacing theory

Uncountably many contractible 3-manifolds with double 3-space property and those without are identified.

problem Characterizing contractible 3-manifolds with specific topological properties.
method Generalizations of the Whitehead Link and interlacing theory.
result Existence of uncountably many contractible 3-manifolds with and without the double 3-space property.

We characterize those unions of embedded disjoint circles in the 2-sphere which can be the multiple point set of a generic immersion of the 2-sphere into 3-dimensional space in terms of the interlacement of the given circles. Our result is the one higher dimensional analogue of Rosenstiehl's characterization of words b…

2017-04-19abs ↗pdf ↗

A knot diagram has an associated looped interlacement graph, obtained from the intersection graph of the Gauss diagram by attaching loops to the vertices that correspond to negative crossings. This construction suggests an extension of the Kauffman bracket to an invariant of looped graphs, and an extension of Reidemeis…

2008-08-25abs ↗pdf ↗

Loops in surfaces and chord diagrams are studied with graph factorizations and grammars.

problem Understanding loops in surfaces and their properties.
method Factorization of filoops into spheric and toric sums, and grammars generating chordiagraphs.
result Minimal genus of filoops and stability properties under factorizations.

New concept of regular separation for ODEs leads to improved Hardy field results.

problem Understanding solutions of definable ODEs with specific properties.
method Introducing regular separation and proving its implications for ODEs and vector fields.
result The regular separation property leads to improved Hardy field results and non-empty sets of trajectories.

The present paper is a review of the current state of Graph-Link Theory (graph-links are also closely related to homotopy classes of looped interlacement graphs), dealing with a generalisation of knots obtained by translating the Reidemeister moves for links into the language of intersection graphs of chord diagrams. I…

2010-01-03abs ↗pdf ↗

New risk-dependent centrality measures assess node importance in financial networks.

problem Understanding how external risk levels affect network node importance.
method Developed risk-dependent centrality measures based on SI model of epidemics.
result Observed ranking interlacement phenomenon where nodes can swap positions due to external risk changes.

New method combines personal and reference genomes for better machine learning in DNA sequencing.

problem Improving accuracy of genetic variant calls in sequencing data.
method Interlaces personal and reference genomes to generate images for machine learning.
result Significant improvement in germline variant calling and somatic variant calling across tumor/normal data.

In this paper, we study distribution of the zeros of the Alexander polynomials of knots and links in S^3. We call a knot or link "real stable" (resp. "circular stable") if all the zeros of its Alexander polynomial are real (resp. unit complex). We give a general construction of real stable and circular stable knots and…

2013-07-05abs ↗pdf ↗

Study surfaces with constant ratio of principal curvatures in Euclidean and isotropic geometries.

problem Characterize surfaces with constant ratio of principal curvatures in different geometries.
method Differential geometry, line geometry, Lie sphere geometry, ordinary differential equations, algebraic geometry.
result Characterized various types of surfaces like rotational, channel, ruled, helical, and translational.

This paper establishes certain existence and classification results for solutions to SU(n)SU(n) Toda systems with three singular sources at 0, 1, and \infty. First, we determine the necessary conditions for such an SU(n)SU(n) Toda system to be related to an nnth order hypergeometric equation. Then, we construct solutions …

2016-10-11abs ↗pdf ↗

Solves Gursky-Streets equations for σkσ_k Yamabe problem in dimensions n2kn \geq 2k.

problem Solving the σkσ_k Yamabe problem in dimensions n2kn \geq 2k.
method Introduced and solved the Gursky-Streets equations with uniform C1,1C^{1, 1} estimates using concavity of the operator and Garding's theory of hyperbolic polynomials.
result Established the uniqueness of the solution to the degenerate equations for the first time.

We propose a model in which a spliced vector bundle (with an arbitrary number of gauge structures in the splice) possesses a geometry which do not split. The model employs connection 1-forms with values in a space-product of Lie algebras, and therefore interlaces the various gauge structures in a non-trivial manner. Sp…

1997-04-16abs ↗pdf ↗

Study of WKB asymptotics of Stokes matrices and spectral curves, proving rhombus inequalities.

problem Analyzing WKB asymptotics of Stokes matrices and spectral curves.
method Using spectral network theory, Poisson geometry, and cluster structures.
result Real parts of leading WKB exponents satisfy rhombus inequalities.

This work explains how tempering improves Bayesian neural networks by reducing the impact of data augmentation.

problem Improper sharpening of Bayesian neural networks leads to suboptimal performance.
method Theoretical analysis and empirical evaluations of simplified settings and group convolutions.
result Tempering reduces the misspecification due to modeling augmentations as independent and identically distributed (i.i.d.) data.

Study on Sturm-Liouville problems with zero potential and Neumann boundary conditions.

problem Understanding properties of Sturm-Liouville problems with zero potential.
method Developed simple criteria for assessing properties of regular Sturm-Liouville problems in terms of coefficient functions.
result Proved various properties of Sturm-Liouville problems with zero potential under Neumann boundary conditions.

New insights into spectral statistics of sample covariance matrix for stable linear systems.

problem Estimating high-dimensional stable state transition matrices from noisy data.
method Combining spectral theorem for non-Hermitian operators, concentration of measure, and perturbation theory.
result The spectral radius of the sample covariance matrix exhibits phase transitions in high dimensions.

The paper examines circle graphs of Gauss diagrams and finds counterexamples to previous descriptions.

problem Problems with previous descriptions of realizable Gauss diagrams.
method Experimental checking and formulation of new descriptions of realizable circle graphs.
result New descriptions of realizable circle graphs and an algorithm for checking realizability.

The geometric approach [1312.1262] to iterated variations of local functionals -- e.g., of the (master-)action functional -- resulted in an extension of the deformation quantisation technique to the set-up of Poisson models of field theory [IHES/M/15/13]. It also allowed of a rigorous proof ([1312.1262],[1210.0726]) fo…

2014-10-01abs ↗pdf ↗

Paper proposes a robust framework for detecting multiple periodic components in time series.

problem Detecting multiple periodic components in time series with interlaced patterns and external noise.
method Applying maximal overlap discrete wavelet transform to isolate periodic components, ranking them by wavelet variance, and detecting single periodicity robustly.
result The proposed algorithm outperforms other methods for both single and multiple periodicity detection.

This paper synthesizes mp-MRI data for prostate cancer detection.

problem Synthesizing clinically significant prostate cancer MRI data.
method Semi-supervised adversarial learning with StitchLayer and auxiliary distance maximization.
result Synthesizes high-quality mp-MRI images with distinguishable prostate cancer lesions.

The paper connects function theory, dynamics, and ergodic theory via Thurston's theory.

problem Function theory on Teichmüller space and dynamics of mapping class groups.
method Utilizes Thurston's theory and Sullivan's theory on discrete subgroups of hyperbolic space.
result Establishes connections between function theory, dynamics, and ergodic theory.

Lectures on topological field theories and differential cohomology.

problem Exploring topological field theories and their connections to differential cohomology.
method Introduction to topological field theory and generalized Abelian gauge theories.
result Explains the relationship between topological field theories and differential cohomology.

The paper defines strong emergence in field theories and proves it exists between certain theories.

problem Defining and proving the existence of strong emergence phenomena between field theories.
method Formal definition and sufficient conditions for emergence, proving existence in Euclidean background.
result Strong emergence exists between certain parameterized Lagrangian field theories.

Researchers solve M-theory's gauge enhancement problem using advanced homotopy theory.

problem Lift nonabelian gauge fields from D-branes to M-theory.
method Universal constructions in super homotopy theory, focusing on the cyclification adjunction and fiberwise stabilization.
result Gauge enhancement in M-theory is explained by lifting against the fiberwise stabilization of the unit of the cyclification adjunction.

Researchers find new G2G_2-conifolds in MM-theory with potential field theory duals.

problem Exploring the field theory interpretation of MM-theory G2G_2-conifolds.
method Constructing G2G_2-holonomy orbifolds from circle bundles over Calabi-Yau cones.
result Many UV perturbative gauge theories have an infrared dual described by smooth G2G_2-holonomy backgrounds in MM-theory.

We survey three different ways in which K-theory in all its forms enters quantum field theory. In Part 1 we give a general argument which relates topological field theory in codimension two with twisted K-theory, and we illustrate with some finite models. Part 2 is a review of pfaffians of Dirac operators, anomalies, a…

2002-06-18abs ↗pdf ↗

Distributivity in algebraic structures appeared in many contexts such as in quasigroup theory, semigroup theory and algebraic knot theory. In this paper we give a survey of distributivity in quasigroup theory and in quandle theory.

2012-09-28abs ↗pdf ↗

Main mathematical applications of Frobenius manifolds are in the theory of Gromov - Witten invariants, in singularity theory, in differential geometry of the orbit spaces of reflection groups and of their extensions, in the hamiltonian theory of integrable hierarchies. The theory of Frobenius manifolds establishes rema…

1998-07-08abs ↗pdf ↗