Results 71 to 80 of about 3,577 (286)

Fork-Decomposition of Cartesian Product of Graphs

open access: yes, 2023
Let G = (V, E) be a graph. Fork is a tree obtained by subdividing any edge of a star of size three exactly once. In this paper, we investigate the necessary and sufficient condition for the fork-decomposition of Cartesian product of ...
Issacraj, Samuel, Joseph, J. Paulraj
core   +1 more source

Why Physics Still Matters: Improving Machine Learning Prediction of Material Properties With Phonon‐Informed Datasets

open access: yesAdvanced Intelligent Discovery, EarlyView.
Phonons‐informed machine‐learning predictive models are propitious for reproducing thermal effects in computational materials science studies. Machine learning (ML) methods have become powerful tools for predicting material properties with near first‐principles accuracy and vastly reduced computational cost.
Pol Benítez   +4 more
wiley   +1 more source

Intuitionistic Fuzzy Graphs with Categorical Properties

open access: yesFuzzy Information and Engineering, 2015
The main purpose of this paper is to show the rationality of some operations, defined or to be defined, on intuitionistic fuzzy graphs. Firstly, three kinds of new product operations (called direct product, lexicographic product, and strong product) are ...
Hossein Rashmanlou   +3 more
doaj   +1 more source

On eternal domination and Vizing-type inequalities

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
We show sharp Vizing-type inequalities for eternal domination. Namely, we prove that for any graphs G and H, where is the eternal domination function, α is the independence number, and is the strong product of graphs.
Keith Driscoll   +4 more
doaj   +1 more source

Graph decompositions for cartesian products

open access: yesElectronic Notes in Discrete Mathematics, 2005
Abstract In this paper we describe an algorithmic construction that, given a tree-decomposition of a graph G and a path-decomposition of a graph H , provides a tree-decomposition of the cartesian product of G and H . From the latter, we derive upper bounds on the treewidth and on the pathwidth of the cartesian product, expressed in terms of the
openaire   +1 more source

When Biology Meets Medicine: A Perspective on Foundation Models

open access: yesAdvanced Intelligent Discovery, EarlyView.
Artificial intelligence, and foundation models in particular, are transforming life sciences and medicine. This perspective reviews biological and medical foundation models across scales, highlighting key challenges in data availability, model evaluation, and architectural design.
Kunying Niu   +3 more
wiley   +1 more source

Hamiltonicity of Cartesian products of graphs

open access: yesGraphs and Combinatorics
Abstract A path factor in a graph G is a factor of G in which every component is a path on at least two vertices. Let $$T\Box P_n$$
Irena Hrastnik Ladinek   +3 more
openaire   +2 more sources

E-cordial Labeling for Cartesian Product of Some Graphs

open access: yes, 2011
We investigate E-cordial labeling for some cartesian product of graphs. We prove that the graphs Kn × P2 and Pn × P2 are E-cordial for n even while Wn × P2 andK1,n × P2 are E-cordial for n odd.
Vaidya, S. K., Vyas, N. B.
core   +1 more source

Deep Learning–Based Extraction of Promising Material Groups and Common Features from High‐Dimensional Data: A Case of Optical Spectra of Inorganic Crystals

open access: yesAdvanced Intelligent Discovery, EarlyView.
We report a novel interpretation method for deep learning models based on feature extraction and clustering. Applying this method to an atomistic line graph neural network (ALIGNN) model trained on optical absorption spectra of 2,681 inorganic compounds obtained from first‐principles calculations, we successfully identify key factors underlying ...
Akira Takahashi   +3 more
wiley   +1 more source

Adjacent vertex distinguishing acyclic edge coloring of the Cartesian product of graphs [PDF]

open access: yesTransactions on Combinatorics, 2017
‎Let $G$ be a graph and $chi^{prime}_{aa}(G)$ denotes the minimum number of colors required for an‎ ‎acyclic edge coloring of $G$ in which no two adjacent vertices are incident to edges colored with the same set of colors‎. ‎We prove a general bound for $
Fatemeh Sadat Mousavi, Massomeh Noori
doaj   +1 more source

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