Results 21 to 30 of about 140,549 (266)

Edge-Orders [PDF]

open access: yes, 2016
Canonical orderings and their relatives such as st-numberings have been used as a key tool in algorithmic graph theory for the last decades. Recently, a unifying concept behind all these orders has been shown: they can be described by a graph ...
Schlipf, Lena, Schmidt, Jens M.
core   +2 more sources

Two Kinds of Laplacian Spectra and Degree Kirchhoff Index of the Weighted Corona Networks

open access: yesJournal of Mathematics, 2022
Recently, the study related to network has aroused wide attention of the scientific community. Many problems can be usefully represented by corona graphs or networks.
Haiqin Liu, Yanling Shao
doaj   +1 more source

The concept of exchangeability in ensemble forecasting [PDF]

open access: yesNonlinear Processes in Geophysics, 2011
A set of random variables is exchangeable if its joint distribution function is invariant under permutation of the arguments. The concept of exchangeability is discussed, with a view towards potential application in evaluating ensemble forecasts.
J. Bröcker, H. Kantz
doaj   +1 more source

Parallel Construction of Edge-independent Spanning Trees in Augmented Cubes [PDF]

open access: yesJisuanji kexue
In recent years,more and more research work is being conducted around interconnected networks.Independent spanning trees(ISTs) can be used in reliable transmission,parallel transmission,safe distribution of information,and parallel diagnosis of fault ...
LI Xiajing, CHENG Baolei, FAN Jianxi, WANG Yan, LI Xiaorui
doaj   +1 more source

Completely Independent Spanning Trees in k-Th Power of Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2018
Let T1, T2, . . . , Tk be spanning trees of a graph G. For any two vertices u, v of G, if the paths from u to v in these k trees are pairwise openly disjoint, then we say that T1, T2, . . . , Tk are completely independent. Araki showed that the square of
Hong Xia
doaj   +1 more source

A Note on Ultrametric Spaces, Minimum Spanning Trees and the Topological Distance Algorithm

open access: yesInformation, 2020
We relate the definition of an ultrametric space to the topological distance algorithm—an algorithm defined in the context of peer-to-peer network applications.
Jörg Schäfer
doaj   +1 more source

Allometric models for improving aboveground biomass estimates in West African savanna ecosystems

open access: yesTrees, Forests and People, 2021
West African Sudanian savanna ecosystems greatly contribute to local peoples’ livelihoods and climate change mitigation. Yet, the contribution of these ecosystems to carbon storage remains poorly documented due to the lack of accurate biomass predictive ...
Moussa Ganamé   +4 more
doaj   +1 more source

Fast and Compact Distributed Verification and Self-Stabilization of a DFS Tree [PDF]

open access: yes, 2014
We present algorithms for distributed verification and silent-stabilization of a DFS(Depth First Search) spanning tree of a connected network. Computing and maintaining such a DFS tree is an important task, e.g., for constructing efficient routing ...
A. Cournier   +22 more
core   +1 more source

Simplicial and Cellular Trees [PDF]

open access: yes, 2015
Much information about a graph can be obtained by studying its spanning trees. On the other hand, a graph can be regarded as a 1-dimensional cell complex, raising the question of developing a theory of trees in higher dimension.
Duval, Art M.   +2 more
core   +2 more sources

The mass distribution of coarse particulate organic matter exported from an Alpine headwater stream [PDF]

open access: yesEarth Surface Dynamics, 2013
Coarse particulate organic matter (CPOM) particles span sizes from 1 mm, with a dry mass less than 1 mg, to large logs and entire trees, which can have a dry mass of several hundred kilograms.
J. M. Turowski   +5 more
doaj   +1 more source

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