The protected GEO region is defined by boundaries in inclination (-15° ... +15°) and orbit radius (± 200 km with respect to true GEO height). There are nearly 390 operational satellites with orbits inside of this zone. In addition, there are nearly 280 officially catalogued objects with orbits completely inside of the protected zone, and nearly 180 catalogued GEO satellites with orbits crossing...

Abstract The paper gives characterizations of the supernorm statistic $$\widehat{N} :\mathcal {P}\rightarrow \mathbb {N}^{+}$$ N ^ : P → + for partitions,...

We define Dumont’s statistic on the symmetric group Sn to be the function dmc: Sn → N which maps a permutation σ to the number of distinct nonzero letters in code(σ). Dumont showed that this statistic is Eulerian. Naturally extending Dumont’s statistic to the rearrangement classes of arbitrary words, we create a generalized statistic which is again Eulerian. As a consequence, we show that for e...

Sample covariance matrices are also of essential importance in multivariate statistical analysis because many test statistics involve their eigenvalues and/or eigenvectors. The typical example is T 2 statistic, which was proposed by Hotelling [2]. We refer to [1] and [3] for various uses of the T 2 statistic. The T 2 statistic, which is the origin of multivariate linear hypothesis tests and the...

Enriching user profiles using geo-social place semantics in geo-folksonomies Ehab ElGindy & Alia Abdelmoty To cite this article: Ehab ElGindy & Alia Abdelmoty (2014) Enriching user profiles using geosocial place semantics in geo-folksonomies, International Journal of Geographical Information Science, 28:7, 1439-1458, DOI: 10.1080/13658816.2014.894194 To link to this article: http://dx.doi.org/1...