Results 81 to 90 of about 1,167,245 (202)

Distance-regular graphs of hamming type

open access: yesJournal of Combinatorial Theory, Series B, 1990
An H(e,\(\lambda\),k)-graph is defined to be a distance-regular graph with the following intersection array \[ \left\{\begin{matrix} 0 & 1 & 2 &... & e-1 & e & *...* \\ 0 & \lambda & 2\lambda & ... & (e-1)\lambda & * & *...* & \\ k & * & * & ... & * & * & *...* \end{matrix}\right\} \] where * takes an arbitrary value under the restriction that each ...
openaire   +2 more sources

Combinatorial PDEs on Hamming graphs

open access: yesDiscrete Mathematics, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
BARLETTA, Elisabetta, DRAGOMIR, Sorin
openaire   +1 more source

Characterizing subgraphs of Hamming graphs

open access: yesJournal of Graph Theory, 2005
AbstractCartesian products of complete graphs are known as Hamming graphs. Using embeddings into Cartesian products of quotient graphs we characterize subgraphs, induced subgraphs, and isometric subgraphs of Hamming graphs. For instance, a graph G is an induced subgraph of a Hamming graph if and only if there exists a labeling of E(G) fulfilling the ...
Klavžar, Sandi, Peterin, Iztok
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HammingVis: A visual analytics approach for understanding erroneous outcomes of quantum computing in hamming space

open access: yesGraphical Models
Advanced quantum computers have the capability to perform practical quantum computing to address specific problems that are intractable for classical computers.
Jieyi Chen   +6 more
doaj   +1 more source

Antibandwidth and cyclic antibandwidth of Hamming graphs

open access: yesDiscrete Applied Mathematics, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dobrev, Stefan   +4 more
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CONTINUITY OF UNIVERSALLY MEASURABLE HOMOMORPHISMS

open access: yesForum of Mathematics, Pi, 2019
Answering a longstanding problem originating in Christensen’s seminal work on Haar null sets [Math. Scand. 28 (1971), 124–128; Israel J. Math. 13 (1972), 255–260; Topology and Borel Structure.
CHRISTIAN ROSENDAL
doaj   +1 more source

Invariant Hamming graphs in infinite quasi-median graphs

open access: yesDiscrete Mathematics, 1996
A Hamming graph is a Cartesian product of complete graphs. The main results of the paper are: (i) a quasi-median graph without isometric rays contains a Hamming graph which is invariant under any automorphism; and (ii) any contraction of a rayless quasi-median graph stabilizes a finite Hamming graph.
Chastand, Marc, Polat, Norbert
openaire   +1 more source

Isometric embeddings in Hamming graphs

open access: yesJournal of Combinatorial Theory, Series B, 1990
An \(O(n^ 3)\)-algorithm is established which embeds a given graph isometrically into a Hamming graph (i.e., a Cartesian product of complete graphs) whenever possible, and recognizes non-embeddable graphs. From the algorithm several characterizations of the embeddable graphs are derived.
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The retracts of Hamming graphs

open access: yesDiscrete Mathematics, 1992
All graphs considered are finite undirected simple ones. The object of this article is the investigation of the so-called quasimedian graphs. In detail known results, especially of \textit{H. M. Mulder}, are presented, the essential concepts and their properties are placed at disposal and to it many definitions are necessary, the most important of them
openaire   +1 more source

\(L(h,k)\)-labelings of Hamming graphs

open access: yesDiscrete Mathematics, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Huang, L.-H., Chang, G. J.
openaire   +2 more sources

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