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On the eigenvalues of generalized and double generalized stars
Linear and Multilinear Algebra, 2005We consider describing all possible spectra of symmetric matrices associated with certain graphs by characterizing all possible ordered multiplicity lists. For generalized and double generalized stars we provide a complete description of all possible eigenvalue sequences.
Francesco Barioli, Shaun Fallat
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Solving a Ring Star Problem Generalization
2008 International Conference on Computational Intelligence for Modelling Control & Automation, 2008The Capacitated m-Ring Star Problem (CmRSP) consists of finding a set of m rings, each of them including the central depot, a subset of customers, and a set of optional nodes used to diminish the costs of the network design. The rings must be node-disjoint (except for the central depot) in order to provide node-survivability to the network.
Antonio Mauttone +3 more
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Distribution of the stars in the General Catalogue of Variable Stars
Publications of the Astronomical Society of the Pacific, 1982The distribution of nearly 20,000 stars from the General Catalogue of Variable Stars is presented. The stars have been classified by variable type, apparent magnitude, and galactic latitude.
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The first generations of stars
Astronomy and Astrophysics Review, 1996Up to a decade ago, searches for population III stars (i.e. with strictly the chemical composition left by the Big Bang) had led to the results that (1) no such star had been found, (2) stars with metallicities significantly below [Fe/H] = $-2.5$ were exceedingly rare.
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The First Generations of Stars
Science, 2005The first stars in our universe that formed shortly after the Big Bang were probably very massive and short-lived. Their demise is believed to have spawned a second generation of stars, which recorded the elemental compositions of their progenitors. Some of these second-generation stars may still be detectable today.
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Energy Generation in the Stars
2014In Chap. 2, we discussed the extraordinary conjecture by Eddington that the source of energy in the Sun and the stars must be the transmutation of the elements, more specifically, the conversion of hydrogen into helium.
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A Clustering Algorithm Based on Generalized Stars
2007In this paper we present a new algorithm for document clustering called Generalized Star (GStar). This algorithm is a generalization of the Star algorithm proposed by Aslam et al., and recently improved by them and other researchers. In this method we introduced a new concept of star allowing a different star-shaped form with better overlapping ...
Airel Pérez Suárez +1 more
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Australian family physician, 1995
These dimensions are not mutually exclusive. They all inter-relate. Their purpose is to provide a series of focal points to group the various knowledge, attitudes and skills required of a general practitioner, which can be diagrammatically represented by a five pointed star (Figure 1). The description of the domains in Table 2, is not exhaustive. It is
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These dimensions are not mutually exclusive. They all inter-relate. Their purpose is to provide a series of focal points to group the various knowledge, attitudes and skills required of a general practitioner, which can be diagrammatically represented by a five pointed star (Figure 1). The description of the domains in Table 2, is not exhaustive. It is
openaire +1 more source