Results 21 to 30 of about 436,808 (318)

ifct2017/hierarchy: Tree-like hierarchy of nutrients, and its components

open access: yes, 2022
Tree-like hierarchy of nutrients, and its components. Node.js, Files. This is part of package ifct2017. Online database: ifct2017.github.io. const hierarchy = require('@ifct2017/hierarchy'); // hierarchy(query) // → {parents, ancestry, children} if ...
Subhajit Sahu
core   +1 more source

Hierarchies

open access: yesCoRR, 2013
We study the complexity theory for the local distributed setting introduced by Korman, Peleg and Fraigniaud. They have defined three complexity classes LD (Local Decision), NLD (Nondeterministic Local Decision) and NLD^#n. The class LD consists of all languages which can be decided with a constant number of communication rounds.
Friedhelm Meyer auf der Heide   +1 more
openaire   +2 more sources

A Hierarchy of Superstrings [PDF]

open access: yesPhysical Review Letters, 1994
We construct a hierarchy of supersymmetric string theories by showing that the general N-extended superstrings may be viewed as a special class of the (N+1)-extended superstrings. As a side result, we find a twisted (N+2) superconformal algebra realized in the N-extended string.
Bastianelli, Fiorenzo   +2 more
openaire   +3 more sources

Watersheding Hierarchies [PDF]

open access: yes, 2019
The computation of hierarchies of partitions from the watershed transform is a well-established segmentation technique in mathematical morphology. In this article, we introduce the watersheding operator , which maps any hierarchy into a hierarchical watershed.
Santana Maia, Deise   +3 more
openaire   +1 more source

THE DELAUNAY HIERARCHY [PDF]

open access: yesInternational Journal of Foundations of Computer Science, 2002
We propose a new data structure to compute the Delaunay triangulation of a set of points in the plane. It combines good worst case complexity, fast behavior on real data, small memory occupation and the possibility of fully dynamic insertions and deletions. The location structure is organized into several levels.
openaire   +3 more sources

A hierarchy of gauge hierarchies [PDF]

open access: yesNuclear Physics B, 1980
Abstract We investigate the possibility that there is no intrinsic mass scale below the Planck mass mp, and that both stages of symmetry breaking in grand unified theories may be generated by radiative corrections. In such a scheme it is plausible that 1 ⪢ mx/mp ⪢ mw/mx, where the subscript X denotes the superheavy bosons in grand unified theories ...
J. Ellis   +3 more
openaire   +1 more source

On Hierarchies and Communication [PDF]

open access: yesSSRN Electronic Journal, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +6 more sources

The place of Modernism in Central European art [PDF]

open access: yesJournal of Art Historiography, 2022
Piotr Piotrowski’s concept of horizontal art history was first formulated in his article ‘On the spatial turn, or horizontal art history’, published in Umění in 2008.
Katarzyna Murawska-Muthesius
doaj   +1 more source

A Boolean Algebra Approach for Class Hierarchy Normalization [PDF]

open access: yes, 1997
Normalization in object-oriented design is much different from that in relational database design. Not only are the conceptual data model of object-oriented (o-o) models integrating richer structuring capabilities than that of relational models, but also
Jitian Xiao   +3 more
core   +1 more source

The Boolean hierarchy and the polynomial hierarchy: a closer connection [PDF]

open access: yesProceedings Fifth Annual Structure in Complexity Theory Conference, 1996
Summary: We show that if the Boolean hierarchy collapses to level \(k\), then the polynomial hierarchy collapses to \(\text{BH}_3(k)\), where \(\text{BH}_3(k)\) is the \(k\)th level of the Boolean hierarchy over \(\Sigma^{\text{P}}_2\). This is an improvement over the known results, which show that the polynomial hierarchy would collapse to \(\text{P}^{
Chang, Richard, Kadin, Jim
openaire   +2 more sources

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