Results 31 to 40 of about 177,806 (308)

Spectral recognition of graphs [PDF]

open access: yesYugoslav Journal of Operations Research, 2012
At some time, in the childhood of spectral graph theory, it was conjectured that non-isomorphic graphs have different spectra, i.e. that graphs are characterized by their spectra.
Cvetković Dragoš
doaj   +1 more source

Distanced graphs

open access: yesDiscrete Mathematics, 1992
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Metric Locations in Pseudotrees: A Survey and New Results

open access: yesMathematics
This paper presents a comprehensive review of the literature on the original concept of metric location, along with its various adaptations and extensions that have been developed over time.
José Cáceres, Ignacio M. Pelayo
doaj   +1 more source

Distance equienergetic graphs of diameter 4

open access: yesExamples and Counterexamples
Let Γ1, Γ2 and Γ3 be graphs with pairwise disjoint vertex sets. The graph Θ(Γ1,Γ2,Γ3) is obtained from the graphs Γ1∘Γ3 (the corona product) and Γ2 by joining each vertices of Γ1 in Γ1∘Γ3 with every vertices in Γ2.
B.J. Manjunatha   +2 more
doaj   +1 more source

ON DISTANCE-i-GRAPHS OF DISTANCE-REGULAR GRAPHS

open access: yesKyushu Journal of Mathematics, 1994
Let \(G\) be a graph. The distance \(i\)-graph of \(G\) is the graph \(G_ i\) defined on the vertex set of \(G\), and \(u\) and \(v\) are adjacent if and only if the distance between \(u\) and \(v\) is \(i\). This paper studies the distance \(i\)-graph of a distance regular graph and its connected component, and obtains a lot of special features of the
openaire   +2 more sources

On the degree distance of a graph

open access: yesDiscrete Applied Mathematics, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Peter Dankelmann   +3 more
openaire   +1 more source

The distance coloring of graphs [PDF]

open access: yesActa Mathematica Sinica, English Series, 2014
Let $G$ be a connected graph with maximum degree $Δ\ge 3$. We investigate the upper bound for the chromatic number $χ_γ(G)$ of the power graph $G^γ$. It was proved that $χ_γ(G) \leΔ\frac{(Δ-1)^γ-1}{Δ-2}+1=:M+1$ with equality if and only $G$ is a Moore graph.
Miao, Lian Ying, Fan, Yi Zheng
openaire   +2 more sources

The Weisfeiler–Leman Dimension of Distance-Hereditary Graphs

open access: yes, 2023
Graf nazýváme distančně dědičný když v libovolném souvislém indukovaném podgrafe je vzdálenost dvou vrcholů rovnaká jako v původním grafu. V článku dokážeme, že WL-dimenze distnčně dědičných grafů je dva.A graph is said to be distance-hereditary if the ...
Roman Nedela   +6 more
core   +1 more source

Biophysical approaches for studying viral entry

open access: yesFEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

Some new results on the reciprocal complementary Wiener number of graphs [PDF]

open access: yesContributions to Mathematics, 2022
Ramin Nasiri, Ali Reza Shojaeifard
doaj   +1 more source

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