Results 11 to 20 of about 1,420,602 (168)
Clustering cluster algebras with clusters
Advances in Theoretical and Mathematical Physics, 2023 Classification of cluster variables in cluster algebras (in particular, Grassmannian cluster algebras) is an important problem, which has direct application to computations of scattering amplitudes in physics. In this paper, we apply the tableaux method to classify cluster variables in Grassmannian cluster algebras $\mathbb{C}[Gr(k,n)]$ up to $(k,n)=(3,
Cheung, M-W +5 more
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Persistence in cluster-cluster aggregation [PDF]
Physical Review E, 2002 Persistence is considered in diffusion--limited cluster--cluster aggregation, in one dimension and when the diffusion coefficient of a cluster depends on its size $s$ as $D(s) \sim s^γ$. The empty and filled site persistences are defined as the probabilities, that a site has been either empty or covered by a cluster all the time whereas the cluster ...
Hellén, E.K.O., Alava, M.J.
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Clustering Cycles into Cycles of Clusters [PDF]
Journal of Graph Algorithms and Applications, 2005 Summary: We study simple families of clustered graphs that are highly unconnected. We start by studying 3-cluster cycles, which are clustered graphs such that the underlying graph is a simple cycle and there are three clusters all at the same level. We show that in this case, testing the c-planarity can be done efficiently and give an efficient drawing
Pier Francesco Cortese +3 more
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The Astrophysical Journal, 1985 The cluster correlation function xi sub c(r) is compared with the particle correlation function, xi(r) in cosmological N-body simulations with a wide range of initial conditions. The experiments include scale-free initial conditions, pancake models with a coherence length in the initial density field, and hybrid models.
J. Barnes +3 more
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Nature Communications, 2023 Recent studies have documented among-individual phenotypic variation that emerges in the absence of apparent genetic and environmental differences, but it remains an open question whether such seemingly stochastic variation has fitness consequences.
Ulrike Scherer +4 more
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Scientific Reports, 2022 Crystal growth of eco-friendly, ultrawide bandgap aluminium gallium nitride (AlGaN) semiconductor-based ultraviolet-B (UVB) light-emitting diodes (LEDs) hold the potential to replace toxic mercury-based ultraviolet lamps.
M. Ajmal Khan +5 more
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COVID-19 impact on the company's development: a case of UNIT.City [PDF]
Health Economics and Management Review, 2021 This article addresses problems and directions of innovative activity of real national economy amidst the COVID-19 pandemic. The authors evaluated the pandemic impact on the business state in the studied industry.
Halyna Mishenina +2 more
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Ochrona Dziedzictwa Kulturowego, 2020 Villa Beatrice d’Este is a 17th century Venetian Villa in the Veneto Region, Italy, located within the area of the Euganean Hills Regional Park. The villa was built to replace a previous 13th century Medieval Monastery, whose structure was integrated in ...
Valentina Gamba +3 more
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Covid-19 impact on business sector activity in the EU countries: digital issues [PDF]
Health Economics and Management Review, 2021 This article is devoted to the study of the impact of the COVID-19 pandemic on the functioning of the business sector of European countries through bibliometric analysis.
Inna Tiutiunyk +2 more
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Clustering technique for conceptual clusters [PDF]
Proceedings of the 11th edition of the International Workshop on Smalltalk Technologies, 2016 Clustering aims to classify elements into groups called classes or clusters. Clustering is used in reverse-engineering to help to understand legacy software. It is also a tech-nic used in re-engineering to propose gatherings of software entities to engineers who can then accept them or not. This paper presents a Pharo implementation of an iterative and
Govin, Brice +3 more
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