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Sibirskie Èlektronnye Matematicheskie Izvestiya [Siberian Electronic Mathematical Reports], 2017, Volume 14, Pages 367–387
DOI: https://doi.org/10.17377/semi.2017.14.030
(Mi semr789)
 

Discrete mathematics and mathematical cybernetics

Claw-free strictly Deza graphs

V. V. Kabanova, A. V. Mityaninab

a Krasovskii Institute of Mathematics and Mechanics UB RAS, ul. S. Kovalevskoy, 16, 620990, Yekaterinburg, Russia
b Chelyabinsk State University, ul. Br. Kashirinyh, 129, 454000, Chelyabinsk, Russia
References:
Abstract: A Deza graph with parameters $(v,k,b,a)$ is a $k$-regular graph, which has exactly $v$ vertices and any two distinct vertices have either $a$ or $b$ common neighbors. A strictly Deza graph is a Deza graph of diameter $2$ that is not strongly regular. A claw-free graph is a graph in which no induced subgraph is a complete bipartite graph $K_{1,3}$. We proved if graph $G$ is a claw-free strictly Deza graph which contains a $3$-coclique then $G$ is either an $4 \times n$-lattice, where $n > 2$, $n \neq 4$, or the $2$-extension of the $3 \times 3$-lattice, or two strictly Deza graphs with the parameters $(9,4,2,1)$, or two strictly Deza graphs with the parameters $(12,6,3,2)$, or a Deza line graph with the parameters $(20,6,2,1)$.
Keywords: strictly Deza graphs, claw-free graphs.
Received October 21, 2016, published April 6, 2017
Bibliographic databases:
Document Type: Article
UDC: 519.172.4
MSC: 05C25
Language: English
Citation: V. V. Kabanov, A. V. Mityanina, “Claw-free strictly Deza graphs”, Sib. Èlektron. Mat. Izv., 14 (2017), 367–387
Citation in format AMSBIB
\Bibitem{KabMit17}
\by V.~V.~Kabanov, A.~V.~Mityanina
\paper Claw-free strictly Deza graphs
\jour Sib. \`Elektron. Mat. Izv.
\yr 2017
\vol 14
\pages 367--387
\mathnet{http://mi.mathnet.ru/semr789}
\crossref{https://doi.org/10.17377/semi.2017.14.030}
\isi{https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=Publons&SrcAuth=Publons_CEL&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=000407792200034}
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