Results 41 to 50 of about 100 (100)

A $4/3$ Approximation for $2$-Vertex-Connectivity [PDF]

open access: yesTheoretiCS
The 2-Vertex-Connected Spanning Subgraph problem (2VCSS) is among the most basic NP-hard (Survivable) Network Design problems: we are given an (unweighted) undirected graph $G$.
Miguel Bosch-Calvo   +2 more
doaj   +1 more source

Faster parameterized algorithms for modification problems to minor-closed classes [PDF]

open access: yesTheoretiCS
Let ${\cal G}$ be a minor-closed graph class and let $G$ be an $n$-vertex graph. We say that $G$ is a $k$-apex of ${\cal G}$ if $G$ contains a set $S$ of at most $k$ vertices such that $G\setminus S$ belongs to ${\cal G}$.
Laure Morelle   +3 more
doaj   +1 more source

The generalizedp-Centdian on network

open access: yes
Location, Centdian, Networks, 68Q20, 68R99, 05C85, 90C35,
Dionisio Brito, José Moreno Pérez
core   +1 more source

Fast algorithms for determining (generalized) core groups in social networks

open access: yes
Core, Large network, Decomposition, Graph algorithm, 05A18, 05C70, 05C85, 05C90, 68R10, 68W40, 92H30, 92G30, 93A15,
Vladimir Batagelj, Matjaž Zaveršnik
core   +1 more source

Harmonic evolutions on graphs

open access: yes, 2008
We define the harmonic evolution of states of a graph by iterative application of the harmonic operator (Laplacian over Z2). This provides graphs with a new geometric context and leads to a new tool to analyze them.
Jerzy Kocik
core  

The Serial Transitive Closure Problem for Trees

open access: yes, 2002
The serial transitive closure problem is the problem of, given a directed graph G and a list of edges, called closure edges, which are in the transitive closure of the graph, to generate all the closure edges from edges in G.

core  

Highly parallel sparse matrix-matrix multiplication

open access: yes, 2010
. Generalized sparse matrix-matrix multiplication (or SpGEMM) is a key primitive for many high performance graph algorithms as well as for some linear solvers, such as algebraic multi-grid.
R. Gilbert, Aydin Buluc, John
core  

Continuous facility location on graphs. [PDF]

open access: yesMath Program, 2022
Hartmann TA, Lendl S, Woeginger GJ.
europepmc   +1 more source

Edge Colouring Reduced Indifference Graphs

open access: yes, 1999
The chromatic index problem -- finding the minimum number of colours required for colouring the edges of a graph -- is still unsolved for indifference graphs, whose vertices can be linearly ordered so that the vertices contained in the same maximal ...
Celina M. H. De Figueiredo   +3 more
core  

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