Results 171 to 180 of about 3,573,561 (343)
Holomorphic K-Theory, Algebraic Co-cycles, and Loop Groups [PDF]
, 2001 Ralph L. Cohen, Paulo Lima‐Filho
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On Bipartite Biregular Large Graphs Derived From Difference Sets
Journal of Graph Theory, EarlyView.ABSTRACT A bipartite graph G = ( V , E ) $G=(V,E)$ with V = V 1 ∪ V 2 $V={V}_{1}\cup {V}_{2}$ is biregular if all the vertices of each stable set, V 1 ${V}_{1}$ and V 2 ${V}_{2}$, have the same degree, r $r$ and s $s$, respectively. This paper studies difference sets derived from both Abelian and non‐Abelian groups.
Gabriela Araujo‐Pardo +3 more
wiley +1 more source
Cubic and quartic planar differential systems with exact algebraic limit cycles
Electronic Journal of Differential Equations, 2011 We construct cubic and quartic polynomial planar differential systems with exact limit cycles that are ovals of algebraic real curves of degree four. The result obtained for the cubic case generalizes a proposition of [9].
Ahmed Bendjeddou, Rachid Cheurfa
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A Dichotomy Theorem for Γ ${\rm{\Gamma }}$‐Switchable H $H$‐Colouring on m $m$‐Edge‐Coloured Graphs
Journal of Graph Theory, EarlyView.ABSTRACT Let G $G$ be a graph in which each edge is assigned one of the colours 1,2,…,m $1,2,\ldots ,m$, and let Γ ${\rm{\Gamma }}$ be a subgroup of Sm ${S}_{m}$. The operation of switching at a vertex x $x$ of G $G$ with respect to an element π $\pi $ of Γ ${\rm{\Gamma }}$ permutes the colours of the edges incident with x $x$ according to π $\pi $. We
Richard Brewster +2 more
wiley +1 more source
Multiplicative basis for algebras whose universal cover has no oriented cycles
, 1984 Roberto Martínez Villa +1 more
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Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT This study examines the complex dynamics of dengue transmission by incorporating time delay into a comprehensive model. The model is designed to capture several essential components, including steady‐state events, immune waning, recuperation from infection, and partial shielding in human populations.
G. M. Vijayalakshmi +4 more
wiley +1 more source
The Geisser-Levine method revisited and algebraic cycles over a finite field [PDF]
, 2002 Bruno Kahn
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International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.ABSTRACT The present study develops a finite element‐based numerical method for simulation of frictional rotational sliding induced damage and heating effects on rock. The method is applied to the Sievers’ J‐ miniature drill test, which is widely used for estimating the rock drillability and predicting the cutter life.
Timo Saksala +8 more
wiley +1 more source
Knowledge Gradient Procedure to Select the Best System Under Pairwise Comparisons
Naval Research Logistics (NRL), EarlyView.ABSTRACT This article considers fixed‐budget ranking and selection (R&S) problems where the performance of alternative designs can only be assessed through pairwise comparisons, a setting encountered in many applications, including player ranking in games, sports tournaments, recommender systems, image‐based search, public choice models such as voting ...
Dongyang Li +4 more
wiley +1 more source
Quantifying community keystoneness in metacommunities under disturbance
Oikos, EarlyView.Understanding how metacommunities respond to natural and anthropogenic disturbances is a key objective in ecology. In this study, we introduce an analytical framework to identify communities whose extirpation triggers stronger (hereafter keystone communities) or weaker (hereafter idle communities) cascading effects on extinction and colonization events
Gabriel Khattar, Pedro R. Peres-Neto
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