Results 51 to 60 of about 104 (103)
Sub-exponential Time Parameterized Algorithms for Graph Layout Problems on Digraphs with Bounded Independence Number. [PDF]
Misra P, Saurabh S, Sharma R, Zehavi M.
europepmc +1 more source
Total-Chromatic Number and Chromatic Index of Dually Chordal Graphs
A graph is dually chordal if it is the clique graph of a chordal graph. Alternatively, a graph is dually chordal if it admits a maximum neighbourhood order. This class generalizes known subclasses of chordal graphs such as doubly chordal graphs, strongly
Celina M. H. De Figueiredo +3 more
core
Counting and optimising maximum phylogenetic diversity sets. [PDF]
Manson K, Semple C, Steel M.
europepmc +1 more source
Highly parallel sparse matrix-matrix multiplication
. 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
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Subexponential-Time Algorithms for Finding Large Induced Sparse Subgraphs. [PDF]
Novotná J +5 more
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Constructing Worst Case Instances for Semidefinite Programming Based Approximation Algorithms
SL,BAEb#[1 programming based approximation algorithms, such as the Goemans and Williamson approximation algorithm for the MAX CUT problem, are usually shown to have certain performance guarantees using local ratio techniques.
Benny Sudakov, Uri Zwick, Noga Alon
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Recognizing Circulant Graphs of Prime Order in Polynomial Time
A circulant graph G of order n is a Cayley graph over the cyclic group Z n : Equivalently, G is circulant iff its vertices can be ordered such that the corresponding adjacency matrix becomes a circulant matrix. To each circulant graph we may associate a
Mikhail E. Muzychuk, Gottfried Tinhofer
core
The hybrid number of a ploidy profile. [PDF]
Huber KT, Maher LJ.
europepmc +1 more source
Robust Matchings, Maximum Clustering, and Maximum Capacitated Medians
We consider complete graphs with nonnegative edge weights. A p-matching is a set of p disjoint edges. We prove the existence of a maximal (with respect to inclusion) matching M that contains for any p jM j p edges whose total weight is at least 1 p 2
Refael Hassin, Shlomi Rubinstein
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