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Star-free star and trace languages
Fundam. Informaticae, 2006Summary: The paper deals with star-free languages in free monoids and trace monoids. We introduce the notion of star-free star, fundamental for this paper, and show that the classes of star-free languages and star-free star languages coincide. Then, using this result, we obtain a general characterization of star-free trace languages, containing a ...
Edward Ochmanski, Krystyna Stawikowska
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High molecular gas fractions in normal massive star-forming galaxies in the young Universe
Nature, 2010Andreas Burkert +2 more
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Solar-type dynamo behaviour in fully convective stars without a tachocline
Nature, 2016Jeremy J. Drake, Nicholas J Wright
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A substantial population of low-mass stars in luminous elliptical galaxies
Nature, 2010Charlie Conroy +2 more
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