منابع مشابه
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The examples in Figure 16 and Figure 17 demonstrate how system errors have a cascading effect, resulting in multiple errors being introduced into a single hypothesis string. The alignment examples shown are, by design, easy to understand and are easily derived. In practice, multiple errors frequently occur in a single hypothesis string resulting in many different possible alignments. The Scorin...
متن کاملTwists of X(7) and primitive solutions to x 2 + y 3 = z 7
We find the primitive integer solutions to x 2 + y 3 = z 7. A nonabelian descent argument involving the simple group of order 168 reduces the problem to the determination of the set of rational points on a finite set of twists of the Klein quartic curve X. To restrict the set of relevant twists, we exploit the isomorphism between X and the modular curve X(7), and use modularity of elliptic curv...
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متن کاملGalaxies Dominate the Z ∼ 0 . 7 Ultraviolet Luminosity Density ?
We combine high-resolution images from GEMS with redshifts and spectral energy distributions from COMBO-17 to explore the morphological types of galaxies that dominate the z ∼ 0.7 UV luminosity density. We analysed rest-frame 280 nm and V -band luminosities of 1483 galaxies with 0.65 < z < 0.75, combining these with visual morphological classifications from F850LP images (approximately rest-fra...
متن کاملExtending the Butcher – Oemler effect up to z ∼ 0 . 7 ⋆
We have observed three clusters at z ∼ 0.7, of richness comparable to the low redshift sample of Butcher & Oemler (BO), and determined their fraction of blue galaxies. When adopting the standard error definition, two clusters have a low blue fraction for their redshifts, whereas the fraction of the third one is compatible with the expected value. A detailed analysis of previous BO–like studies ...
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ژورنال
عنوان ژورنال: Annali di Matematica Pura ed Applicata, Series 1
سال: 1864
ISSN: 0373-3114,1618-1891
DOI: 10.1007/bf03198884