Results 21 to 30 of about 4,831,666 (266)

An existence result for the sandpile problem on flat tables with walls

open access: yesNetworks and Heterogeneous Media, 2008
We derive an existence result for solutions of a differential system whichcharacterizes the equilibria of a particular model in granular matter theory, theso-called partially open table problem for growing sandpiles.Such result generalizesa recent ...
Graziano Crasta, Stefano Finzi Vita
doaj   +1 more source

Geometric analysis of Lorentzian distance function on spacelike hypersurfaces [PDF]

open access: yes, 2009
Some analysis on the Lorentzian distance in a spacetime with controlled sectional (or Ricci) curvatures is done. In particular, we focus on the study of the restriction of such distance to a spacelike hypersurface satisfying the Omori-Yau maximum ...
Alias, Luis J.   +2 more
core   +3 more sources

Green functions and smooth distances

open access: yesMathematische Annalen, 2023
AbstractIn the present paper, we show that for an optimal class of elliptic operators with non-smooth coefficients on a 1-sided Chord-Arc domain, the boundary of the domain is uniformly rectifiable if and only if the Green function G behaves like a distance function to the boundary, in the sense that $$\left| \frac{\nabla G(X)}{G(X)}-\frac{\nabla D(X)}{
Joseph Feneuil   +2 more
openaire   +5 more sources

Improved Heterogeneous Distance Functions

open access: yesJournal of Artificial Intelligence Research, 1997
Instance-based learning techniques typically handle continuous and linear input values well, but often do not handle nominal input attributes appropriately. The Value Difference Metric (VDM) was designed to find reasonable distance values between nominal attribute values, but it largely ignores continuous attributes, requiring ...
Wilson, D. R., Martinez, T. R.
openaire   +4 more sources

Bounds for the minimum distance function

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
Let I be a homogeneous ideal in a polynomial ring S. In this paper, we extend the study of the asymptotic behavior of the minimum distance function δI of I and give bounds for its stabilization point, rI, when I is an F -pure or a square-free monomial ...
Núñez-Betancourt Luis   +2 more
doaj   +1 more source

A New Distance for Intuitionistic Fuzzy Sets Based on Similarity Matrix

open access: yesIEEE Access, 2019
Measuring the distance between two intuitionistic fuzzy sets (IFSs) is an open issue. Many types of distances for the IFSs have been proposed in previous studies.
Cuiping Cheng, Fuyuan Xiao, Zehong Cao
doaj   +1 more source

Problems and Solutions Concerning the Distance Protection of Transmission Lines Connected to Inverter-Based Resources

open access: yesEnergies
This article presents a review of the problems and solutions concerning the distance protection of transmission lines connected to inverter-based resources (IBRs).
Juan David Hernández-Santafé   +1 more
doaj   +1 more source

Construction of nearly hyperbolic distance on punctured spheres

open access: yes, 2017
We define a distance function on the bordered punctured disk ...
Sugawa, Toshiyuki, Zhang, Tanran
core   +1 more source

An Extension Theorem for Weighted Ricci Curvature on Finsler Manifolds

open access: yesCumhuriyet Science Journal, 2019
Let(M,F) be a forward complete and connected Finsler manifold of dimensional n≥2. In this study, we extend Wan’s extension theorem in Riemannian manifolds to Finsler manifolds by using the weighted Ricci curvatureRicNbounded below.
Yasemin Soylu
doaj   +1 more source

Testing the Hubble Law with the IRAS 1.2 Jy Redshift Survey [PDF]

open access: yes, 1996
We test and reject the claim of Segal et al. (1993) that the correlation of redshifts and flux densities in a complete sample of IRAS galaxies favors a quadratic redshift-distance relation over the linear Hubble law.
Daniel M. Koranyi   +11 more
core   +2 more sources

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