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Published in 2021 at "Topology and its Applications"
DOI: 10.1016/j.topol.2020.107448
Abstract: Abstract In this paper we characterize the Rothberger property and the selection principles star-Rothberger and strongly star-Rothberger in the hyperspaces C L ( X ) , K ( X ) , F ( X )…
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Keywords:
rothberger rothberger;
type star;
selection;
topology ... See more keywords
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Published in 2020 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201936819
Abstract: We report the detection of multiple quasi-periodic pulsations (QPPs) observed during the flaring activity of KIC 8414845, a young, active solar-type star observed by the Kepler mission launched by NASA. We analyzed the QQP signal…
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Keywords:
solar type;
type star;
reconnection;
magnetic reconnection ... See more keywords
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Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz1478
Abstract: We present the discovery of a unique object, a chemically peculiar Ap-type star showing fi Scuti pulsations that, is bound in an eclipsing binary system with an orbital period shorter than 3 d. HD 99458…
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Keywords:
99458 first;
eclipsing binary;
type star;
period ... See more keywords
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Published in 2017 at "Science"
DOI: 10.1126/science.357.6347.159-a
Abstract: Stellar Activity The Sun's activity, including sun-spot activity, varies on an 11-year cycle driven by changes in its magnetic field. Other nearby solar-type stars have their own cycles, but the Sun does not seem to…
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Keywords:
type star;
solar type;
sun;
type ... See more keywords
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Published in 2019 at "Forum Mathematicum"
DOI: 10.1515/forum-2018-0302
Abstract: Abstract In this paper, we discuss continuity properties of the Wick-type star product on the 2-sphere, interpreted as a coadjoint orbit. Star products on coadjoint orbits in general have been constructed by different techniques. We…
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Keywords:
coadjoint orbits;
continuity;
star products;
type star ... See more keywords