Results 61 to 70 of about 1,442 (223)

Allocation of Indivisible Items With a Common Preference Graph: Minimizing Total Dissatisfaction

open access: yesNetworks, EarlyView.
ABSTRACT Allocating indivisible items among a set of agents is a frequently studied discrete optimization problem. In the setting considered in this work, the agents' preferences over the items are assumed to be identical. We consider a very recent measure for the overall quality of an allocation which does not rely on numerical valuations of the items.
Nina Chiarelli   +6 more
wiley   +1 more source

$G$-designs for the connected triangular bicyclic graphs with nine edges [PDF]

open access: yesTransactions on Combinatorics
A $G$-design of order $n$ is a decomposition of the complete graph $K_n$ into isomorphic copies of $G$. We show that if $G$ is a connected bicyclic graph with nine edges containing two triangles, a $G$-design of order $n$ exists whenever $n \equiv 0,1 ...
Bryan Freyberg   +4 more
doaj   +1 more source

The Upper Bound of the Edge Mostar Index with Respect to Bicyclic Graphs

open access: yesMathematics, 2023
Let G be a connected graph; the edge Mostar index Moe(G) of G is defined as Moe(G)=∑e=uv∈E(G)|mu(e)−mv(e)|, where mu(e) and mv(e) denote the number of edges in G that are closer to vertex u than to vertex v and the number of edges that are closer to ...
Hui Wang, Mengmeng Liu
doaj   +1 more source

Unsaturated biobased polyesters from bicyclic α‐pinene‐based diols

open access: yesPolymer International, EarlyView.
We present the synthesis of four biosourced unsaturated polyesters made from chiral terpene‐based diols and esters of renewable diacids. The resulting materials harbor a bicyclic pinene ring in their backbones which leads to enhanced thermal properties while still conferring susceptibility to enzyme hydrolysis for chains having a cis alkene.
Ganapathy Ranjani   +4 more
wiley   +1 more source

REDUCED SECOND ZAGREB INDEX OF BICYCLIC GRAPHS WITH PENDENT VERTICES

open access: yes, 2016
Reduced second Zagreb index has been defined recently. In this paper we characterized extremal bicyclic graphs with pendent vertices with respect to this novel ...
Ediz, Süleyman
core   +2 more sources

Cuproptosis Inducers in Cancer Therapy: State of the Art and Challenges

open access: yesThe Chemical Record, EarlyView.
Cuproptosis is emerging as a distinct copper‐dependent cell death pathway, highlighting copper as a potential metabolic vulnerability in cancer. This review examines how coordination chemistry, redox regulation, and nanomaterial design shape Cu reactivity and therapeutic outcomes.
Chiara Ragusa, Valentina Oliveri
wiley   +1 more source

The Hosoya index and the Merrifield-Simmons index of some graphs [PDF]

open access: yesTransactions on Combinatorics, 2012
The Hosoya index and the Merrifield-Simmons index are two types of graph invariants used in mathematical chemistry. In this paper, we give some formulas for computed these indices for some classes of corona product and link of two graphs. Furthermore, we
Samaneh Hossein-Zadeh   +3 more
doaj  

Sharp Bounds of the Hyper-Zagreb Index on Acyclic, Unicylic, and Bicyclic Graphs

open access: yesDiscrete Dynamics in Nature and Society, 2017
The hyper-Zagreb index is an important branch in the Zagreb indices family, which is defined as ∑uv∈E(G)‍(d(u)+d(v))2, where d(v) is the degree of the vertex v in a graph G=(V(G),E(G)). In this paper, the monotonicity of the hyper-Zagreb index under some
Wei Gao   +5 more
doaj   +1 more source

The inertia of unicyclic graphs and bicyclic graphs

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2013
Let G be a graph with n vertices and (G) be the matching number of G. The inertia of a graph G, In(G) = (n+;n ;n0) is an integer triple specifying the numbers of positive, negative and zero eigenvalues of the adjacency matrix A(G), respectively. Let (G) = n0 denote the nullity of G (the multiplicity of the eigenvalue zero of G).
openaire   +1 more source

Impact of Banning a Rideshare E‐Scooter Programme on Emergency Department Presentations in Perth: A Natural Experiment

open access: yesANZ Journal of Surgery, EarlyView.
ABSTRACT Background E‐scooters have become a popular, low‐cost mode of urban transport worldwide, with rideshare programmes increasing public access. However, safety concerns are growing, with many studies describing injury patterns and healthcare burden. This study evaluated the impact of the suspension of rideshare e‐scooters on emergency department (
Joshua Briotti   +5 more
wiley   +1 more source

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