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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.

169,291 papers · 148 categories

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48 results for logarithmic height

Sharp bounds on K-semistable Fano varieties for low dimensions.

problem Establishing bounds on the height of K-semistable Fano varieties.
method Analyzing canonical integral models of toric Fano varieties, using the gap hypothesis and Donaldson's modular height.
result Sharp lower bounds on the height of toric Fano varieties, with applications to Mabuchi functional and Odaka's modular height.

The study finds all possible heights for transformation groups on graphs.

problem Determining the possible heights of transformation groups on graphs.
method Proved the existence of a topological graph XX for all finite p0p\geq0.
result For all finite p0p\geq0, there exists a graph XX such that the set of heights is {p,p+1,p+2,}{+}\{p,p+1,p+2,\ldots\}\cup\{+\infty\}.

The paper classifies affine minimal translation surfaces and finds their properties.

problem Classifying and understanding affine minimal translation surfaces.
method Using Weierstrass-Enneper formula and hodographic coordinate system.
result Classification and properties of affine minimal translation surfaces.

The abstract discusses connections between K-stability, heights, and rational points on Fano varieties.

problem Understanding the density of rational points on Fano varieties.
method Exploring connections between height bounds, K-stability, and Peyre's conjecture.
result Established an analog of height inequalities for real points, related to Kähler-Einstein metrics.

The paper estimates heights of constant mean curvature graphs in specific spaces.

problem Estimating heights of constant mean curvature graphs in Nil3\mathrm{Nil}_3 and PSL~2(R)\widetilde{PSL}_2(\mathbb{R}).
method Height estimates for compact, constant mean curvature graphs in Nil3\mathrm{Nil}_3 and PSL~2(R)\widetilde{PSL}_2(\mathbb{R}).
result Announced a structure-type result for proper graphs defined on relatively compact domains.

The stabilisation height of a fibre surface in the 3-sphere is the minimal number of Hopf plumbing operations needed to attain a stable fibre surface from the initial surface. We show that families of fibre surfaces related by iterated Stallings twists have unbounded stabilisation height.

2016-07-04abs ↗pdf ↗

We study the singularities of the members of the family of height functions on Whitney umbrellas, which is also known as cross-caps, and show that the family of the height functions is a versal unfolding. Moreover, we study local intersections of a Whitney umbrella with a hyperplane through its singular point.

2012-05-14abs ↗pdf ↗

Defines height pairing for differential forms on Riemann surface degenerations.

problem Calculating heights for differential forms on degenerating Riemann surfaces.
method Defines Archimedean height pairing, uses Dai-Yoshikawa asymptotics, extends Filip-Tosatti construction.
result Relates new pairing to current-valued pairing, extends geometric settings.

Study uses satellite and lidar data to map forest height and biomass in France.

problem Mapping forest resources and carbon in large areas.
method Machine learning approach using Sentinel-1, Sentinel-2, ALOS-2, and GEDI Lidar data.
result High-resolution maps of forest height and biomass produced with good accuracy.

Study describes singularities of height functions on specific singular surfaces.

problem Analyzing singularities of height functions on singular surfaces.
method Using geometric language and blowing-ups, investigate singularities of height functions and dual surfaces.
result Characterized singularities of height functions and dual surfaces on specific singular surfaces.

The paper modifies a warped product space to find conditions for constant height functions.

problem Finding sufficient conditions for the height function to be constant in a modified warped product space.
method The paper modifies the warped product space by adding a warping function and discusses the sufficient condition for the height of immersed surfaces.
result The paper establishes a sufficient condition for the height function to be constant in the modified warped product space.

The heights of Alexandroff square transformation groups are computed and proven.

problem Computing possible heights of Alexandroff square transformation groups.
method Analyzing the heights of transformation groups for Alexandroff square, unit square with lexicographic order, and unit square with Euclidean topology.
result Proven heights for transformation groups of Alexandroff square, unit square with lexicographic order, and unit square with Euclidean topology.

The paper proves height estimates for Killing graphs on manifolds.

problem Proving height estimates for Killing graphs defined over a complete manifold with boundary.
method Introducing a weighted manifold structure and proving a weighted volume estimate for intrinsic balls on the Killing graph.
result Global height estimates for Killing graphs are provided under specific conditions.

We describe spaces of essential finite height (measured) laminations in a surface SS using a parameter space we call S\mathbb S, an ordered semi-ring. We show that for every finite height essential lamination LL in SS, there is an action of π1(S)π_1(S) on an S\mathbb S-tree dual to the lift of LL to the universal co…

2014-04-11abs ↗pdf ↗

The paper connects special cycle heights to Siegel Eisenstein series.

problem Connecting special cycle heights to Siegel Eisenstein series.
method Constructing Green forms for special cycles in Shimura varieties and relating local archimedean heights to derivatives of Siegel Eisenstein series.
result The conjecture relating derivatives of Siegel Eisenstein series to arithmetic intersections of special cycles is settled for local archimedean heights.

We classify, in terms of topology of highest arcs, low height non-simple geodesics on the modular hyperbolic punctured sphere with three elliptic fixed points of order two. Of eight possible types, exactly one consists of geodesics that form a bigon about the cusp; we express all such geodesics in terms of Markoff trip…

2004-10-07abs ↗pdf ↗

We consider height functions on symmetric spaces MG/KM\cong G/K embedded in the associated matrix Lie group GG. In particular we study the relationship between the critical sets of the height function on GG and its restriction to MM. Also we prove that the gradient flow on MM can be integrated by means of a generaliz…

2013-07-23abs ↗pdf ↗

The height function of various surfaces decomposes into finite sums of scaled and translated versions of itself.

problem Decomposing the height function of different types of surfaces into simpler components.
method Using Euler-Ramanujan identities and Weierstrass-Enneper representation to decompose height functions of minimal, maximal, timelike minimal, and Born-Infeld surfaces.
result The height function of various surfaces can be expressed as a finite sum of scaled and translated versions of itself.

The author constructs height functions and studies their first derivatives on closed manifolds.

problem Understanding the first derivatives of height functions on closed manifolds.
method Constructing explicit maps and height functions, studying their global behaviors.
result Detailed study of the first derivatives of height functions on closed manifolds.

Paper shows equivalences between Dixmier-Douady bundles and differential 3-cocycles.

problem Understanding equivalences between Dixmier-Douady bundles and differential 3-cocycles.
method Focuses on the model of Dixmier-Douady bundles and provides equivalences between 2-stacks.
result Equivalence between Dixmier-Douady bundles and differential 3-cocycles of height 1.

The paper extends CMC surface theory to product spaces, proving height estimates and classifying surfaces.

problem Extending CMC surface theory to product spaces with specific curvature conditions.
method Analyzing graphs and using angle function to derive curvature estimates and classify surfaces.
result Classification of all simply connected, properly embedded surfaces with finite topology.

DeepMIDE forecasts wind speeds across space, time, and height for offshore wind energy.

problem Forecasting wind speeds across multiple heights for large offshore wind turbines.
method Statistical deep learning model that jointly models wind speeds at different heights using a multi-output integro-difference equation.
result DeepMIDE forecasts outperform traditional methods in real-world offshore wind energy data.

The paper derives height estimates for surfaces with constant curvature in warped product spaces.

problem Estimating heights of surfaces with constant curvature in warped product spaces.
method Use of conformal parameters and geometric applications to derive height estimates.
result Derives height estimates for surfaces with positive extrinsic or mean curvature in RimesfR2\mathbb{R} imes_{f} \mathbb{R}^{2}.

Given a finite graph of relatively hyperbolic groups with its fundamental group relatively hyperbolic and edge groups quasi-isometrically embedded and relatively quasiconvex in vertex groups, we prove that vertex groups are relatively quasiconvex if and only if all the vertex groups have finite relative height in the f…

2015-08-21abs ↗pdf ↗

The paper estimates heights of H-surfaces in warped products with conditions.

problem Estimating heights of constant mean curvature surfaces in warped products.
method Analyzing surfaces with transversal boundaries in warped product spaces.
result Height estimates involving area and bounded volume for H-surfaces.

Study enhances neural network predictions for wave height using topological features.

problem Challenges in predicting wave heights due to short-term and long-term factors.
method Hybridization of persistent homology with neural networks for feature engineering.
result Significant improvements in R2R^2 score and reductions in errors for various neural network models.