Results 31 to 40 of about 382,145 (280)

Infinite limits and folding [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2005
We study infinite limits of graphs generated by the duplication model for biological networks. We prove that with probability 1, the sole nontrivial connected component of the limits is unique up to isomorphism. We describe certain infinite deterministic
Anthony Bonato, Jeannette Janssen
doaj   +1 more source

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

On tree-decompositions of one-ended graphs [PDF]

open access: yes, 2018
A graph is one-ended if it contains a ray (a one way infinite path) and whenever we remove a finite number of vertices from the graph then what remains has only one component which contains rays. A vertex $v$ {\em dominates} a ray in the end if there are
Carmesin, Johannes   +2 more
core   +2 more sources

Non symmetric random walk on infinite graph [PDF]

open access: yesOpuscula Mathematica, 2011
We investigate properties of a non symmetric Markov's chain on an infinite graph. We show the connection with matrix valued random walk polynomials which satisfy the orthogonality formula with respect to non a symmetric matrix valued measure.
Marcin J. Zygmunt
doaj   +1 more source

On the Metric Dimension of Infinite Graphs [PDF]

open access: yesElectronic Notes in Discrete Mathematics, 2009
A set of vertices $S$ \emph{resolves} a graph $G$ if every vertex is uniquely determined by its vector of distances to the vertices in $S$. The \emph{metric dimension} of a graph $G$ is the minimum cardinality of a resolving set. In this paper we study the metric dimension of infinite graphs such that all its vertices have finite degree.
José Cáceres   +4 more
openaire   +6 more sources

On Hamilton decompositions of infinite circulant graphs [PDF]

open access: yes, 2017
The natural infinite analogue of a (finite) Hamilton cycle is a two-way-infinite Hamilton path (connected spanning 2-valent subgraph). Although it is known that every connected 2k-valent infinite circulant graph has a two-way-infinite Hamilton path ...
Bryant, Darryn   +3 more
core   +2 more sources

Extendable self-avoiding walks [PDF]

open access: yes, 2018
The connective constant mu of a graph is the exponential growth rate of the number of n-step self-avoiding walks starting at a given vertex. A self-avoiding walk is said to be forward (respectively, backward) extendable if it may be extended forwards ...
Grimmett, Geoffrey R.   +2 more
core   +2 more sources

Sobolev Regularity of Multilinear Fractional Maximal Operators on Infinite Connected Graphs

open access: yesMathematics, 2021
Let G be an infinite connected graph. We introduce two kinds of multilinear fractional maximal operators on G. By assuming that the graph G satisfies certain geometric conditions, we establish the bounds for the above operators on the endpoint Sobolev ...
Suying Liu, Feng Liu
doaj   +1 more source

The Colouring Number of Infinite Graphs [PDF]

open access: yesCombinatorica, 2019
We show that, given an infinite cardinal $μ$, a graph has colouring number at most $μ$ if and only if it contains neither of two types of subgraph. We also show that every graph with infinite colouring number has a well-ordering of its vertices that simultaneously witnesses its colouring number and its cardinality.
Nathan J. Bowler   +3 more
openaire   +2 more sources

The Distinguishing Index of Infinite Graphs [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2015
The  distinguishing index $D^\prime(G)$ of a graph $G$ is the least cardinal $d$ such that $G$ has an edge colouring with $d$ colours that is only preserved by the trivial automorphism. This is similar to the notion of the distinguishing number $D(G)$ of a graph $G$, which is defined with respect to vertex colourings.We derive several bounds for ...
Broere, Izak, Pilsniak, Monika
openaire   +2 more sources

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