Results 21 to 30 of about 34,352 (308)

Some Invariants of Jahangir Graphs [PDF]

open access: yesSymmetry, 2017
In this report, we compute closed forms of M-polynomial, first and second Zagreb polynomials and forgotten polynomial for Jahangir graphs Jn,m for all values of m and n. From the M-polynomial, we recover many degree-based topological indices such as first and second Zagreb indices, modified Zagreb index, Symmetric division index, etc.
Mobeen Munir   +5 more
openaire   +1 more source

The Foliage Partition: An Easy-to-Compute LC-Invariant for Graph States [PDF]

open access: yesQuantum
This paper introduces the foliage partition, an easy-to-compute LC-invariant for graph states, of computational complexity $\mathcal{O}(n^3)$ in the number of qubits.
Adam Burchardt, Frederik Hahn
doaj   +1 more source

Eccentric topological properties of a graph associated to a finite dimensional vector space

open access: yesMain Group Metal Chemistry, 2020
A topological index is actually designed by transforming a chemical structure into a number. Topological index is a graph invariant which characterizes the topology of the graph and remains invariant under graph automorphism.
Liu Jia-Bao   +5 more
doaj   +1 more source

An invariant of spatial graphs [PDF]

open access: yesJournal of Graph Theory, 1989
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Invariant Graph Transformer [PDF]

open access: yes, 2023
Rationale discovery is defined as finding a subset of the input data that maximally supports the prediction of downstream tasks. In graph machine learning context, graph rationale is defined to locate the critical subgraph in the given graph topology ...
Xu, Zhe   +6 more
core   +1 more source

On the r-dynamic coloring of some fan graph families

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
In this paper, we determine the r-dynamic chromatic number of the fan graph Fm,n and determine sharp bounds of this graph invariant for four related families of graphs: The middle graph M(Fm,n), the total graph T (Fm,n), the central graph C(Fm,n) and the
Falcón Raúl M.   +3 more
doaj   +1 more source

Representation of an invariant measure of irreducible discrete-time Markov chain with a finite state space by a set of opposite directed trees [PDF]

open access: yesКомпьютерные исследования и моделирование, 2015
A problem of finding of an invariant measure of irreducible discrete-time Markov chain with a finite state space is considered. There is a unique invariant measure for such Markov chain that can be multiplied by an arbitrary constant. A representation of
Alexej Lvovich Krugly
doaj   +1 more source

Convolutional Neural Network Outperforms Graph Neural Network on the Spatially Variant Graph Data

open access: yesMathematics, 2023
Applying machine learning algorithms to graph-structured data has garnered significant attention in recent years due to the prevalence of inherent graph structures in real-life datasets.
Anna Boronina   +2 more
doaj   +1 more source

On the invariance of residues of Feynman graphs [PDF]

open access: yesJournal of Mathematical Physics, 2002
We use simple iterated one-loop graphs in massless Yukawa theory and QED to pose the following question: what are the symmetries of the residues of a graph under a permutation of places to insert subdivergences. The investigation confirms partial invariance of the residue under such permutations: the highest weight transcendental is invariant under ...
Bierenbaum, Isabella   +2 more
openaire   +3 more sources

Cross-View Graph Consistency Learning for Invariant Graph Representations [PDF]

open access: yes, 2023
Graph representation learning is fundamental for analyzing graph-structured data. Exploring invariant graph representations remains a challenge for most existing graph representation learning methods.
Mao, Hua   +4 more
core   +1 more source

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