Results 11 to 20 of about 587,527 (280)

Strongly Regular Graphs Constructed from $p$-ary Bent Functions [PDF]

open access: yesJournal of Algebraic Combinatorics, 2010
In this paper, we generalize the construction of strongly regular graphs in [Y. Tan et al., Strongly regular graphs associated with ternary bent functions, J. Combin.Theory Ser.
Chee Yin, De Zhang, Tan Xian, Yeow Meng
core   +3 more sources

On Subtree Number Index of Generalized Book Graphs, Fan Graphs, and Wheel Graphs

open access: yesJournal of Mathematics, 2021
With generating function and structural analysis, this paper presents the subtree generating functions and the subtree number index of generalized book graphs, generalized fan graphs, and generalized wheel graphs, respectively.
Daoqiang Sun   +4 more
doaj   +1 more source

Orientable -distance magic regular graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2021
Hefetz, Mütze, and Schwartz conjectured that every connected undirected graph admits an antimagic orientation (Hefetz et al., 2010). In this paper we support the analogous question for distance magic labeling. Let be an Abelian group of order .
Paweł Dyrlaga, Karolina Szopa
doaj   +1 more source

Matchings in regular graphs‎: ‎minimizing the partition function [PDF]

open access: yesTransactions on Combinatorics, 2021
For a graph $G$ on $v(G)$ vertices let $m_k(G)$ denote the number of matchings of size $k$‎, ‎and consider the partition function $M_{G}(\lambda)=\sum_{k=0}^nm_k(G)\lambda^k$‎.
Márton Borbényi, Peter Csikvari
doaj   +1 more source

Graphs of intersections of closed polygonal chains

open access: yesЖурнал Белорусского государственного университета: Математика, информатика, 2021
In the paper such subclass of string graphs as intersection graphs of closed polygonal chains (class of CPC-graphs) was considered, necessary conditions for belonging to that class, forbidden subgraphs and operations with graphs which preserve belonging ...
Nikolai P. Prochorov, Ekaterina N. Dul
doaj   +1 more source

About Regular Graphs

open access: yesFormalized Mathematics, 2023
Abstract In this article regular graphs, both directed and undirected, are formalized in the Mizar system [7], [2], based on the formalization of graphs as described in [10]. The handshaking lemma is also proven.
openaire   +2 more sources

D-magic strongly regular graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
For a set of distances D, a graph G on n vertices is said to be D-magic if there exists a bijection and a constant k such that for any vertex x, where is the D-neighbourhood set of x.
Rinovia Simanjuntak, Palton Anuwiksa
doaj   +1 more source

Geometric aspects of 2-walk-regular graphs [PDF]

open access: yes, 2013
A $t$-walk-regular graph is a graph for which the number of walks of given length between two vertices depends only on the distance between these two vertices, as long as this distance is at most $t$. Such graphs generalize distance-regular graphs and $t$
Cámara, Marc   +3 more
core   +1 more source

Fault diagnosability of regular graphs

open access: yesTheory and Applications of Graphs, 2020
An interconnection network's diagnosability is an important measure of its self-diagnostic capability. In 2012, Peng et al. proposed a measure for fault diagnosis of the network, namely, the $h$-good-neighbor conditional diagnosability, which requires ...
Mei-Mei Gu, Rong-Xia Hao, Eddie Cheng
doaj   +1 more source

INDUCED REGULAR PERFECT GRAPHS

open access: yesSouth East Asian J. of Mathematics and Mathematical Sciences, 2023
A graph G is said to be R-perfect if, for all induced subgraphs H of G, the induced regular independence number of each induced subgraph H is equal to its corresponding induced regular cover. Here, the induced regular independence number is the maximum number of vertices in H such that no two belong to the same induced regular subgraph in H, and the ...
Jayakumar, Gokul S., V., Sangeetha
openaire   +2 more sources

Home - About - Disclaimer - Privacy