Results 101 to 110 of about 9,781,779 (300)
General multiplicative Zagreb indices of trees with given independence number
, 2021 We obtain lower and upper bounds on general multiplicative Zagreb indices for trees with given independence number and order. Bounds on basic multiplicative Zagreb indices follow from our results. We also show that the bounds are best possible.Key words:
Balachandran, Selvaraj, Vetrik, Tomas
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On estimation of extremal entries of the principal eigenvector of a graph
AKCE International Journal of Graphs and CombinatoricsLet [Formula: see text] be the principal eigenvector corresponding to the spectral radius [Formula: see text] of a graph G of order n. In this paper, we find some bounds on the ratio of the maximal component [Formula: see text] to the minimal component ...
Prohelika Das, Bipanchy Buzarbarua
doaj +1 more source
Bounds on the 2-domination number in cactus graphs [PDF]
Opuscula Mathematica, 2006 A \(2\)-dominating set of a graph \(G\) is a set \(D\) of vertices of \(G\) such that every vertex not in \(S\) is dominated at least twice. The minimum cardinality of a \(2\)-dominating set of \(G\) is the \(2\)-domination number \(\gamma_{2}(G)\).
Mustapha Chellali
doaj
FEBS Letters, EarlyView.Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley +1 more source
Power graphs and a combinatorial property of abundant semigroups
AKCE International Journal of Graphs and CombinatoricsThe aim of this paper is to study the power graph of a semigroup. We obtain sufficient and necessary conditions for the independence number of the power graph of an (IC) abundant semigroups (superabundant semigroups) to be finite.
Junying Guo, Xiaojiang Guo
doaj +1 more source
A dynamic domination problem in trees [PDF]
Transactions on Combinatorics, 2015 We consider a dynamic domination problem for graphs in which an infinite sequence of attacks occur at vertices with guards and the guard at the attacked vertex is required to vacate the vertex by moving to a neighboring vertex with no guard. Other guards
William Klostermeyer, Christina Mynhardt
doaj
Biophysical approaches for studying viral entry
FEBS Letters, EarlyView.Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley +1 more source
Degradation mechanism of the von Willebrand factor A2 domain by nattokinase
FEBS Letters, EarlyView.Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto +3 more
wiley +1 more source
Judicial Independence Conference
, 2009 GJPI attended the Judicial Independence Conference in Erbil on 30 and 31 March 2009, organised by ICJI, IIRL and USIP. The conference presentations addressed a number of aspects of judicial independence including the position of the Ministry of Justice ...
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