Research
On-device research index

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.

168,742 papers · 148 categories

Trend · papers per month

61121182242 · Jun 202019922001200920172026
48 results for Weighted cylinders

The study characterizes hypersurfaces in weighted cylinders and generalizes confinement properties.

problem Characterizing hypersurfaces in weighted Riemannian products.
method Analyzing parabolic hypersurfaces with boundary in weighted cylinders.
result Generalized confinement properties of hypersurfaces in weighted cylinders.

The study examines constant weighted mean curvature hypersurfaces in shrinking Ricci solitons.

problem Characterizing constant weighted mean curvature hypersurfaces in shrinking Ricci solitons.
method Analyzing properties of hypersurfaces in specific ambient spaces (shrinking Ricci solitons).
result Conditions for a constant weighted mean curvature hypersurface to be a level set of the potential function.

Study shows only grim reaper cylinder for certain self-translating surfaces.

problem Characterizing self-translating surfaces in 3D space.
method Used parabolicity in a weighted setting and universally L-superharmonic functions.
result Characterized the grim reaper cylinder as the only finite entropy self-translating 2-surface in R^3 of width π and bounded from below.

Construct minimal Lagrangian surfaces in complex projective plane via loop group method.

problem Construct minimal Lagrangian immersions from arbitrary Riemann surfaces into complex projective plane.
method Loop group method, perturbed equivariant minimal Lagrangian surfaces, Delaunay cylinders approximation.
result Construct a class of minimal Lagrangian cylinders approximating Delaunay cylinders.

The study examines stable regions in weighted manifolds with boundary properties.

problem Studying stable regions in weighted manifolds with boundary properties.
method Using deformations constructed from parallel vector fields tangent to the boundary, the study deduces rigidity properties for stable sets.
result The classification of stable sets in some Riemannian cylinders and uniqueness results for minimizers.

The paper studies hypersurfaces with constant weighted mean curvature in Gaussian space.

problem Characterizing hypersurfaces with specific properties of their Gauss map.
method Analyzing the Gauss map and its image in the Gaussian space.
result Hypersurfaces with certain properties of their Gauss map are either hyperplanes or generalized cylinders.

We consider a homological enlargement of the mapping class group, defined by homology cylinders over a closed oriented surface (up to homology cobordism). These are important model objects in the recent Goussarov-Habiro theory of finite-type invariants of 3-manifolds. We study the structure of this group from several d…

2000-10-26abs ↗pdf ↗

The paper generalizes a rigidity theorem for hypersurfaces with constant weighted mean curvature.

problem Classifying hypersurfaces with constant weighted mean curvature.
method Using polynomial volume growth and specific curvature conditions, the authors prove rigidity theorems.
result Hypersurfaces with constant weighted mean curvature must be either a hyperplane or a generalized cylinder under certain conditions.

We prove the quasimodularity of generating functions for counting torus covers, with and without Siegel-Veech weight. Our proof is based on analyzing decompositions of flat surfaces into horizontal cylinders. The quasimodularity arise as contour integral of quasi-elliptic functions. It provides an alternative proof of …

2016-09-06abs ↗pdf ↗

Classifies self-shrinkers in arbitrary dimensions under specific curvature conditions.

problem Classifying self-shrinkers with quadratic pinching conditions.
method Purely elliptic approach using weighted parabolicity, tailored to self-shrinkers.
result Generalized self-shrinking cylinders as solutions under quadratic pinching.

We define cylinder knots as billiard knots in a cylinder. We present a necessary condition for cylinder knots: after dividing cylinder knots by possible rotational symmetries we obtain ribbon knots. We obtain an upper bound for the number of cylinder knots with two fixed parameters (out of three). In addition we prove …

1998-11-02abs ↗pdf ↗

Two ancient solutions to Gauss curvature flow are identified for cylinders.

problem Classifying ancient solutions to Gauss curvature flow in cylinders.
method Assumption of cylinder cross-section bounded convexity, analysis of asymptotic behavior.
result Only two ancient solutions identified: translating soliton and compact oval solution.

In this paper we show how the existence of a certain stable cylinder determines (locally) the ambient manifold where it is immersed. This cylinder has to verify a {\it bifurcation phenomena}, we make this explicit in the introduction. In particular, the existence of such a stable cylinder implies that the ambient manif…

2011-04-16abs ↗pdf ↗

An innovative method optimizes engine calibration to improve efficiency and reduce emissions.

problem Complex engines with many tunable parameters require efficient calibration methods.
method Combines Principal Component Decomposition with constrained Bayesian Optimization to minimize pressure curve deviation.
result Optimal engine calibration found after 64.4s with a 0.017% efficiency gain.

Knots parametrized in cylinder coordinates by t -> (st, 3 + cos(nt), cos(mt + φ)) share properties of Lissajous and billiard knots in a cylinder. We use these 'billiard knots in a flat solid torus' to study two topics: when is Z(s,n,m) equal to Z(s,m,n)? And: why are the determinants of certain Lissajous and billiard k…

2012-10-24abs ↗pdf ↗

This paper explores how pairs of multicurves can be realized as cylinders on translation surfaces.

problem Understanding when pairs of multicurves can be realized as cylinders on translation surfaces.
method Surface topology and flat grafting deformation.
result Pairs of multicurves can be realized as cylinders on some translation surface.

Stable cylinders found in hyperbolic groups and curve graphs.

problem Torsionfree hyperbolic groups and curve graphs of surfaces have globally stable cylinders.
method Generalised Sageev's construction to improve fine properties of hyperbolic spaces.
result Proved curve graphs of surfaces admit equivariant quasi-isometric embeddings in finite products of quasitrees.

The study classifies translating and self-expanding solitons in 3D space.

problem Characterizing the topology and index of solitons in mean curvature flow.
method Analyzing the spectrum and index of expanding and translating solitons in R3\mathbb{R}^3.
result Translating and self-expanding solitons have finite topology under certain conditions.

In 1991, Dajczer and Rodriguez proved in [10] that a complete minimal real Kahler submanifold of codimension 2, if with complex dimension > 2, would be either holomorphic, or a cylinder, or complex ruled. In this article, we generalize their result to real analytic complete real Kahler submanifolds of codimension 4. Th…

2012-10-14abs ↗pdf ↗

Study proves uniqueness and rigidity of cylindrical self-shrinkers using Łojasiewicz inequalities.

problem Uniqueness and rigidity of cylindrical self-shrinkers in mean curvature flow.
method Direct perturbative analysis of the shrinker mean curvature and Łojasiewicz inequalities.
result Uniqueness and rigidity of cylindrical self-shrinkers, including round cylinders and cylinders over Abresch-Langer curves.

In this article we prove that a connected and properly embedded translating soliton in R3\mathbb{R}^3 with uniformly bounded genus on compact sets which is C1C^1-asymptotic to two planes outside a cylinder, either is flat or coincides with the grim reaper cylinder.

2015-08-06abs ↗pdf ↗

Proves a Minkowski inequality for star-shaped hypersurfaces in warped cylinders.

problem Proving a Minkowski inequality for specific types of hypersurfaces.
method Using weakly mean convex and star-shaped hypersurfaces in warped cylinders, and applying the inverse mean curvature flow.
result Sharp inequality holds for outward minimizing hypersurfaces in Schwarzschild and hyperbolic spaces.

For an orientable surface of finite type equipped with a flat metric with holonomy of finite order q, the set of maximal embedded cylinders can be empty, non-empty, finite, or infinite. The case when q < 3 is well-studied as such surfaces are (semi-)translation surfaces. Not only is the set always infinite, the core cu…

2019-09-30abs ↗pdf ↗

Paper proves uniqueness of catenary cylinders based on their asymptotic shape.

problem Proving uniqueness of catenary cylinders by their asymptotic behavior.
method Applying the moving plane method of Alexandrov and strong maximum principle for elliptic operators.
result Established a uniqueness result for [φ,e3][\varphi,\vec{e}_{3}]-catenary cylinders based on their asymptotic behavior.

We give a Dehn-Nielsen type theorem for the homology cobordism group of homology cylinders by considering its action on the acyclic closure, which was defined by Levine, of a free group. Then we construct an additive invariant of those homology cylinders which act on the acyclic closure trivially. We also describe some…

2005-07-13abs ↗pdf ↗

A homology cylinder over a surface consists of a homology cobordism between two copies of the surface and markings of its boundary. The set of isomorphism classes of homology cylinders over a fixed surface has a natural monoid structure and it is known that this monoid can be seen as an enlargement of the mapping class…

2009-05-29abs ↗pdf ↗