Results 11 to 20 of about 17,191 (264)

Unfolding of Finite Concurrent Automata [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2018
We consider recognizable trace rewriting systems with level-regular contexts (RTL). A trace language is level-regular if the set of Foata normal forms of its elements is regular. We prove that the rewriting graph of a RTL is word-automatic.
Alexandre Mansard
doaj   +1 more source

A new class of graceful graphs: k-enriched fan graphs and their characterisations

open access: yesCubo, 2021
The Graceful Tree Conjecture stated by Rosa in the mid 1960s says that every tree can be gracefully labelled. It is one of the best known open problems in Graph Theory.
M. Haviar, S. Kurtulík
doaj   +1 more source

Directed Polymers on Infinite Graphs [PDF]

open access: yesCommunications in Mathematical Physics, 2021
We study the directed polymer model for general graphs (beyond $\mathbb Z^d$) and random walks. We provide sufficient conditions for the existence or non-existence of a weak disorder phase, of an $L^2$ region, and of very strong disorder, in terms of properties of the graph and of the random walk. We study in some detail (biased) random walk on various
Clément Cosco   +2 more
openaire   +3 more sources

Linearly bounded infinite graphs [PDF]

open access: yesActa Informatica, 2005
Linearly bounded Turing machines have been mainly studied as acceptors for context-sensitive languages. We define a natural class of infinite automata representing their observable computational behavior, called linearly bounded graphs. These automata naturally accept the same languages as the linearly bounded machines defining them. We present some of
Carayol, Arnaud, Meyer, Antoine
openaire   +5 more sources

Graphs whose vertex set can be partitioned into a total dominating set and an independent dominating set [PDF]

open access: yesOpuscula Mathematica
A graph \(G\) whose vertex set can be partitioned into a total dominating set and an independent dominating set is called a TI-graph. We give constructions that yield infinite families of graphs that are TI-graphs, as well as constructions that yield ...
Teresa W. Haynes, Michael A. Henning
doaj   +1 more source

On Ramsey-Minimal Infinite Graphs [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2021
For fixed finite graphs $G$, $H$, a common problem in Ramsey theory is to study graphs $F$ such that $F \to (G,H)$, i.e. every red-blue coloring of the edges of $F$ produces either a red $G$ or a blue $H$. We generalize this study to infinite graphs $G$, $H$; in particular, we want to determine if there is a minimal such $F$.
Barrett, Jordan Mitchell   +1 more
openaire   +3 more sources

Seidel Integral Complete Split Graphs [PDF]

open access: yesMathematics Interdisciplinary Research, 2019
In the paper we consider a generalized join operation, that is, the H-join on graphs where H is an arbitrary graph. In terms of Seidel matrix of graphs we determine the Seidel spectrum of the graphs obtained by this operation on regular graphs.
Pavel Hic   +2 more
doaj   +1 more source

Matchable Infinite Graphs

open access: yesJournal of Combinatorial Theory, Series B, 1994
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Niedermeyer, F., Podewski, K.P.
openaire   +1 more source

Infinite families of asymmetric graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
A graph G is asymmetric if its automorphism group of vertices is trivial. Asymmetric graphs were introduced by Erdős and Rényi in 1963. They showed that the probability of a graph on n vertices being asymmetric tends to 1 as n tends to infinity.
Alejandra Brewer   +5 more
doaj   +1 more source

Infinite Locally Random Graphs [PDF]

open access: yesInternet Mathematics, 2006
Motivated by copying models of the web graph, Bonato and Janssen [Bonato and Janssen 03] introduced the following simple construction: given a graph G, for each vertex x and each subset X of its closed neighborhood, add a new vertex y whose neighbors are exactly X. Iterating this construction yields a limit graph ↑G. Bonato and Janssen claimed that the
Charbit, Pierre, Scott, Alex D.
openaire   +3 more sources

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