Results 21 to 30 of about 2,662,466 (269)

Chains of Group Localizations [PDF]

open access: yesCommunications in Algebra, 2011
We construct long sequences of localization functors L_a in the category of abelian groups such that L_a > L_b for infinite cardinals a < b less than some k. For sufficiently large free abelian groups F and a < b we have proper inclusions of L_aF into L_bF.
openaire   +2 more sources

Galaxy pairs in the Local Group [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2013
Abstract Current models of galaxy formation predict that galaxy pairs of comparable magnitudes should become increasingly rare with decreasing luminosity. This seems at odds with the relatively high frequency of pairings among dwarf galaxies in the Local Group. We use literature data to show that ∼30 per cent of all the satellites of the
Fattahi, Azadeh   +4 more
openaire   +3 more sources

Automorphisms of locally compact groups [PDF]

open access: yesPacific Journal of Mathematics, 1978
It is proved that for arbitrary locally compact groups G the automorphism group Aut (G) is a complete topological group. Several conditions equivalent to closedness of the group Int (G) of inner automorphisms are given, such as G admits no nontrivial central sequences. It is shown that Aut (G) is topologically embedded in the automorphism group Aut^(G)
Peters, J., Sund, Terje
openaire   +4 more sources

Star Formation Histories with Gaia: The Galaxy and Beyond

open access: yesOpen Astronomy, 2003
ESA’s Gaia mission will provide accurate astrometric, photometric and spectroscopic data for millions of stars in the Galaxy and beyond. We discuss the prospects of using this vast amount of astrophysical information for understanding star formation ...
Kučinskas A.   +3 more
doaj   +1 more source

Locally Compact Contractive Local Groups

open access: yesJournal of Lie Theory, 2009
10 ...
van den Dries, Lou, Goldbring, Isaac
openaire   +3 more sources

Globalizing Locally Compact Local Groups

open access: yesJournal of Lie Theory, 2010
5 ...
van den Dries, Lou, Goldbring, Isaac
openaire   +3 more sources

The Group Ring of a Locally Compact Group [PDF]

open access: yesProceedings of the National Academy of Sciences, 1941
Not ...
openaire   +2 more sources

The Complex Upper HR Diagram

open access: yesGalaxies, 2019
Several decades of observations of the most massive and most luminous stars have revealed a complex upper HR Diagram, shaped by mass loss, and inhabited by a variety of evolved stars exhibiting the consequences of their mass loss histories.
Roberta M. Humphreys
doaj   +1 more source

Neolithic Culture: the issues of interpretation

open access: yesАрхеология евразийских степей
In Soviet science, the prevailing viewpoint was that the Neolithic culture corresponded to a group of related tribes. A.A. Formozov and M.V. Voyevodsky also distinguished larger communities: cultural areas, zones, provinces.
Vladimir V. Stavitsky
doaj   +1 more source

Barriers and enablers to source plasma donation by gay, bisexual and other men who have sex with men under revised eligibility criteria: protocol for a multiple stakeholder feasibility study

open access: yesHealth Research Policy and Systems, 2020
Background Blood donation policy in Canada for gay, bisexual and other men who have had sex with men (gbMSM) has changed progressively in the last decade from indefinite deferral to 3-month deferral from last male-to-male sex.
Elisabeth Vesnaver   +17 more
doaj   +1 more source

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