منابع مشابه
Short Communications / Kurze Mitteilungen A Note on the ART of Relaxation
Zusammenfassung A Note on the ART of Relaxation. The ART algorithm, an iterative technique for solving large systems of linear equations, is shown to converge even for inconsistent systems, provided the relaxation parameters are chosen appropriately. The limit is a weighted least squares solution. AMS Subject Classifications: 65FI0, 15A09, 92A07.
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In the USA, cultivated sunflower (Helianthus annuus) is often sympatric with wild H. annuus, which is an agricultural weed that grows along roadsides and in other disturbed sites. We found that crop-to-wild gene flow was common (~5-40% hybrids) when wild plants occurred within <1,000 m of the crop, and crop-specific genetic markers persisted in wild populations for many generations. Crop-to-wil...
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Today, the continental ecosystems of Southeast Asia represent a global biodiversity hotspot. From a deep-time perspective, however, very little is known about the formation of this hotspot. In particular, the evolutionary and biogeographic roots of numerous terrestrial biota are unknown, and ecosystemic information, especially for the Paleogene, is unavailable. The Na Duong Basin in northern Vi...
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Zusammenfassung: Internet-basierte Börseninformationsdienste erfreuen sich großer Beliebtheit bei privaten und institutionellen Anlegern. Die sprichwörtliche Flut täglich verfügbarer Unternehmensnachrichten erschwert jedoch eine effiziente Weiterleitung von tatsächlich kapitalmarktrelevanten Informationen insbesondere auf portable, technisch meist eingeschränkt ausgestattete Endgeräte im Rahmen...
متن کاملEditor's Cut: Managing Scholarly Journals in Mathematics and IT
Copyright© 2005, Karl H. Hofmann and Sidney A. Morris. General permission to republish, but not for profit, all or part of this material is granted, provided that the JRPIT copyright notice is given and that reference is made to the publication and its date of issue. The first version of this essay was jointly delivered by the authors as a colloquium lecture at the University of Ballarat on 24 ...
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ژورنال
عنوان ژورنال: Die Naturwissenschaften
سال: 1914
ISSN: 0028-1042,1432-1904
DOI: 10.1007/bf01495725