arXiv research

The paper connects geodesic nets to distance function critical points.

Stable nets on convex hypersurfaces maintain their shape under small perturbations.

First example of geodesic net with 4 boundary vertices, not a tree.

Generic metrics make geodesic nets dense.

Theorem shows generic metrics yield non-degenerate geodesic nets.

Generic geodesic nets are dense in high-dimensional manifolds.

Optimizing quantum graphs yields geodesic nets on surfaces.

New infinite family of geodesic nets on Euclidean plane discovered.

Geodesic nets on flat spheres are studied using Gauss-Bonnet theorem.

The paper shows equidistribution of geodesics and nets on manifolds.

In non-compact manifolds, geodesic flowers exist.

Closed geodesic nets on surfaces have limited branch points

The existence of a balanced vertex is proven for geodesic nets with three boundary vertices.

A geodesic net with 4 boundary vertices and 25 balanced vertices is constructed.

We prove that a geodesic net with three boundary (= unbalanced) vertices on a non-positively curved plane has at most one balanced vertex. We do not assume any a priori bound for the degrees of unbalanced vertices. The result seems to be new even in the Euclidean case. We demonstrate by examples that the result is not …

An embedded cubic graph consisting of segments of geodesics such that the angles at any vertex are equal to $2π/3$ is a closed local minimal net. This net is regular if all segments of geodesics are equal. The problem of classification of closed local minimal nets on surfaces of constant negative curvature has been for…

Classifies surfaces supporting alignable nets with geodesic and conjugate properties.

Critical nets in k-space have bounded edge lengths and vertices.

New insights into $p$-widths of surfaces, proving optimality and calculating constants.

We define systems of pre-extremals for the energy functional of regular rheonomic Lagrange manifolds and show how they induce well-defined Hamilton orthogonal nets. Such nets have applications in the modelling of e.g. wildfire spread under time- and space-dependent conditions. The time function inherited from such a Ha…

Euclidean nets reveal properties of higher-dimensional manifolds.

The paper generalizes Birkhoff's conjecture for billiards.

I'll describe a general geometric setup allowing for a generalization of Rehren duality to asymptotically anti-de Sitter spacetimes whose classical matter distribution is sufficiently well-behaved as to prevent the occurence of singularities in the sense of null geodesic incompleteness. I'll also comment on the issues …

The paper proves a bound on the length of the shortest geodesic flower on certain manifolds.

The paper explores discrete isothermic nets using checkerboard patterns in quadrilateral nets.

We investigate the common underlying discrete structures for various smooth and discrete nets. The main idea is to impose the characteristic properties of the nets not only on elementary quadrilaterals but also on larger parameter rectangles. For discrete planar quadrilateral nets, circular nets, $Q^*$-nets and conical…

Deep nets outperform shallow nets in complex feature realization.

In this paper, we introduce transformations of deep rectifier networks, enabling the conversion of deep rectifier networks into shallow rectifier networks. We subsequently prove that any rectifier net of any depth can be represented by a maximum of a number of functions that can be realized by a shallow network with a …

Discretizes special surfaces using Koenigs nets.

We discuss discretization of Koenigs nets (conjugate nets with equal Laplace invariants) and of isothermic surfaces. Our discretization is based on the notion of dual quadrilaterals: two planar quadrilaterals are called dual, if their corresponding sides are parallel, and their non-corresponding diagonals are parallel.…

Classifies nets with area-preserving transformations into two types.

Defines CAMC discrete nets and their properties.

We study local and global approximations of smooth nets of curvature lines and smooth conjugate nets by respective discrete nets (circular nets and planar quadrilateral nets) with infinitesimal quads. It is shown that choosing the points of discrete nets on the smooth surface one can obtain second-order approximation g…

Circular nets with spherical parameter lines have geometric properties related to Darboux cyclides and terminating Laplace sequences.

Smart Close-out Netting aims to automate close-out netting processes.

Supercyclides are surfaces with a characteristic conjugate parametrization consisting of two families of conics. Patches of supercyclides can be adapted to a Q-net (a discrete quadrilateral net with planar faces) such that neighboring surface patches share tangent planes along common boundary curves. We call the result…

Integrable nets described with curvature relations to pseudospherical surfaces.

Paper uses replica analysis to optimize net present value in investment portfolios.

We prove local Lipschitz property of the map which puts in correspondence to each $N$--net different from $(N-1)$--net its Chebyshev center. If dimension of Eucledean or Lobachevskii space is greater than 1 and net consists of more than 2 points we show that this map is not Lipschits in a neighbourhood of the space of …

Unified framework for U-Net design and analysis.

BCD-Net improves low-dose CT image reconstruction.

Two-dimensional affine A-nets in 3-space are quadrilateral meshes that discretize surfaces parametrized along asymptotic lines. The characterizing property of A-nets is planarity of vertex stars, so for generic A-nets the elementary quadrilaterals are skew. We classify the simply connected affine A-nets that can be ext…

The paper examines special Q-nets that terminate after a finite number of Laplace steps.

We adapt the method of Simon [JDG '93] to prove a $C^{1,α}$-regularity theorem for minimal varifolds which resemble a cone $\bf{C}_0^2$ over an equiangular geodesic net. For varifold classes admitting a "no-hole" condition on the singular set, we additionally establish $C^{1,α}$-regularity near the cone $\bf{C}_0^2 \ti…

We consider $n$-dimensional discrete motions such that any two neighbouring positions correspond in a pure rotation ("rotating motions"). In the Study quadric model of Euclidean displacements these motions correspond to quadrilateral nets with edges contained in the Study quadric ("rotation nets"). The main focus of ou…

Paper finds the best way to estimate neural net distance from samples.

The paper explores Guichard nets and their dual properties.

Compress U-net by over 1000x with knowledge distillation.