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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.

168,657 papers · 148 categories

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4998147196 · Jun 202019922001200920172026
48 results for wrapped Gaussian

We introduce a wrapped Gaussian for SPD matrices, enhancing data analysis.

problem Handling circular and non-flat data distributions on SPD manifolds.
method Introduced a non-isotropic wrapped Gaussian using the exponential map, derived theoretical properties, and proposed a maximum likelihood framework.
result Demonstrated the robustness and flexibility of the wrapped Gaussian model on synthetic and real-world datasets.

The paper introduces exponential-wrapped distributions on symmetric spaces for better data modeling.

problem Challenges in statistical modeling due to curvature of data spaces.
method Construction and use of exponential-wrapped distributions on affine locally symmetric spaces.
result Exponential-wrapped distributions on symmetric spaces have useful properties for practical use.

Develops intrinsic Gaussian process regression for manifold-valued data.

problem Lack of intrinsic Gaussian process methods for manifold-valued response variables.
method Proposes an intrinsic covariance structure and a novel intrinsic Gaussian process regression model.
result Establishes asymptotic properties and shows posterior consistency.

We introduce a vanishing property of adjoint Reidemeister torsions of a cusped hyperbolic 3-manifold derived from the physics of wrapped M5-branes on the manifold. To support our physical observation, we present a rigorous proof for the figure-eight knot complement with respect to all slopes. We also present numerical …

2019-11-25abs ↗pdf ↗

Study shows links with unbounded annular Khovanov gradings but bounded Floer gradings.

problem Understanding gradings in annular Khovanov homology.
method Infinite families of annular links, computations, satellite operations, link splitting spectral sequence.
result Existence of links with unbounded annular Khovanov gradings but bounded Floer gradings.

This is the first of a series of two articles where we construct a version of wrapped Fukaya category WF(MK;Hg0)\mathcal W\mathcal F(M\setminus K;H_{g_0}) of the cotangent bundle T(MK)T^*(M \setminus K) of the knot complement MKM \setminus K of a compact 3-manifold MM, and do some calculation for the case of hyperbolic knots $K …

2019-01-08abs ↗pdf ↗

Paper establishes an isomorphism between Fukaya category and bordered knot Floer homology.

problem Connecting Fukaya category and bordered knot Floer homology.
method Using A-infinity deformations and Hochschild cohomology calculations.
result Established an isomorphism between endomorphism algebras and star algebras.

We define the notion of special Lagrangian curvature, showing how it may be interpreted as an alternative higher dimensional generalisation of two dimensional Gaussian curvature. We obtain first a local rigidity result for this curvature when the ambiant manifold has negative sectional curvature. We then show how this …

2005-06-13abs ↗pdf ↗

Worldsheet wraps a 3D mesh sheet onto a single image to synthesize novel views.

problem Synthesizing novel views from a single image with large viewpoint changes.
method Shrink-wrapping a planar mesh sheet onto the input image, consistent with learned depth.
result Worldsheet consistently outperforms prior methods on single-image view synthesis.

New measure shows how links can be untangled as twists increase.

problem Understanding how links can be simplified through repeated twists.
method Introduced the stable unknotting number to analyze links in a twist family.
result The stable unknotting number depends only on the winding number of the link, not the wrapping number.

We study supersymmetric probe M5-branes in the AdS_4 solution that arises from M5-branes wrapped on a hyperbolic 3-manifold M_3. This amounts to introducing internal defects within the framework of the 3d-3d correspondence. The BPS condition for a probe M5-brane extending along all of AdS_4 requires it to wrap a surfac…

2014-07-01abs ↗pdf ↗

Study shows infinite Hofer diameter for Lagrangian orbits in cotangent bundles.

problem Determining boundedness of spectral metric on Lagrangian orbit spaces.
method Utilized wrapped Floer cohomology to define spectral invariant and pseudo-metric.
result Proved infinite Hofer diameter for Lagrangian orbits in cotangent bundles.

New connection found between shape reconstruction methods and persistent homology.

problem Connecting shape reconstruction methods with persistent homology.
method Wrap complexes and lexicographic optimal homologous cycles.
result Lexicographically optimal homologous cycles are supported on Wrap complexes.

Suppose KK is a hyperbolic knot in a solid torus VV intersecting a meridian disk DD twice. We will show that if KK is not the Whitehead knot and the frontier of a regular neighborhood of KDK \cup D is incompressible in the knot exterior, then KK admits at most one exceptional surgery, which must be toroidal. Embed…

2011-05-21abs ↗pdf ↗

We analyse the geometrical structure of supersymmetric solutions of type II supergravity of the form R^{1,9-n} x M_n with non-trivial NS flux and dilaton. Solutions of this type arise naturally as the near-horizon limits of wrapped NS fivebrane geometries. We concentrate on the case d=7, preserving two or four supersym…

2002-05-07abs ↗pdf ↗

Using a hyperKähler rotation on complex structures of a Calabi-Yau 2-fold and rolling of an isotropic 2-submanifold in a symplectic 6-manifold, we construct, by gluing, a natural family of immersed Lagrangian deformations of a branched covering of a special Lagrangian 3-sphere in a Calabi-Yau 3-fold and study how they …

2011-09-09abs ↗pdf ↗

In this work we establish the tightest lower bound up-to-date for the minimal crossing number of a satellite knot based on the minimal crossing number of the companion used to build the satellite. If MM is the wrapping number of the pattern knot, we essentially show that c(Sat(P,C))>M22c(C)c(Sat(P,C))>\frac{M^2}{2}c(C). The existence …

2017-12-15abs ↗pdf ↗

Study gauged supergravity, M5-branes, and class R theories, constraining supergravity coefficients and calculating partition functions.

problem Constraints and calculations in higher-derivative supergravity and related theories.
method Holography, Chern-Simons theory, 3d-3d correspondence, wrapped M5-branes.
result Constrained coefficients in supergravity Lagrangian, calculated partition functions for class R theories.

Formulae for Rasmussen invariant of satellite knots with wrapping number 2 proved.

problem Proving formulae for Rasmussen invariant of satellite knots.
method Using multicurve technology for Khovanov and Bar-Natan homology, a new concordance homomorphism.
result Formulae for F2\mathbb{F}_2-Rasmussen invariant of satellite knots with wrapping number 2 proved.

We define a topological quantum membrane theory on a seven dimensional manifold of G2G_2 holonomy. We describe in detail the path integral evaluation for membrane geometries given by circle bundles over Riemann surfaces. We show that when the target space is CY3×S1CY_3\times S^1 quantum amplitudes of non-local observables …

2006-11-29abs ↗pdf ↗

Drug-Drug Interactions (DDIs) Extraction refers to the efforts to generate hand-made or automatic tools to extract embedded information from text and literature in the biomedical domain. Because of restrictions in hand-made efforts and their lower speed, Machine-Learning, or Deep-Learning approaches have become more po…

2019-07-31abs ↗pdf ↗

The paper studies knots formed by twisting a circle around a base knot and conjectures a linear growth in crossing numbers.

problem Understanding the growth rate of crossing numbers in twist families of knots.
method Introduced the stable crossing number and used geometric wrapping and algebraic winding to establish conjectures.
result The crossing number of KnK_n grows like nη(η1)n η(η-1) as non o \infty for coherent twist families.

These notes are based on lectures given at the Clay School on Geometry and String Theory, Isaac Newton Institute, Cambridge, 25 March - 19 April 2002. They attempt to provide an elementary and somewhat self contained discussion of the construction of supergravity solutions describing branes wrapping calibrated cycles, …

2003-05-09abs ↗pdf ↗

The study compares on-chain option prices with a model and finds significant differences.

problem Measuring and comparing on-chain option prices with a model-based benchmark.
method Used a two-regime MS-AR-(GJR)-GARCH model to estimate volatility and GLS to compare prices.
result On-chain option prices are significantly higher than model-based benchmarks, especially for call options.

A recent trend observed in traditionally challenging fields such as computer vision and natural language processing has been the significant performance gains shown by deep learning (DL). In many different research fields, DL models have been evolving rapidly and become ubiquitous. Despite researchers' excitement, unfo…

2019-09-04abs ↗pdf ↗

Precision measurements at the LHC often require analyzing high-dimensional event data for subtle kinematic signatures, which is challenging for established analysis methods. Recently, a powerful family of multivariate inference techniques that leverage both matrix element information and machine learning has been devel…

2019-07-24abs ↗pdf ↗

We present a short elementary proof of an existence theorem of certain CAT(-1)-surfaces in open hyperbolic 3-manifolds. The main construction lemma in Calegari and Gabai's proof of Marden's Tameness Conjecture can be replaced by an applicable version of our theorem.

2009-03-01abs ↗pdf ↗

Novel M-theory approach classifies topological phases of matter.

problem Classifying and understanding topological phases of matter.
method Establishing a correspondence between (2+1)d topological field theories and non-hyperbolic 3-manifolds, identifying topological phases from internal wrapped 3-manifolds.
result Paves a new route toward the classification of topological phases of matter, including fermionic and non-unitary phases.

This paper recovers smooth functions from noisy modulo samples using a three-stage strategy.

problem Recovering Hölder smooth functions from noisy modulo samples.
method Three-stage strategy: denoising with local polynomial estimators, unwrapping, and spline-based quasi-interpolant.
result Uniform error rates for Hölder class functions with high probability.

We construct the TQFT on symplectic cohomology and wrapped Floer cohomology, possibly twisted by a local system of coefficients, and prove that the TQFT respects Viterbo restriction maps and the canonical maps from ordinary cohomology. We also construct the module structure of wrapped Floer cohomology over symplectic c…

2010-03-09abs ↗pdf ↗