Rope-end Hook

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rope ens

Comfort, W.W. and J. van Mill, Some topological groups with, and some without, proper dense subgroups, Topology and its Applications 41 (1991) 3-15. Continuing earlier investigations into the question cf the existence of a proper dense subgroup of a given topological group, the authors obtain some positive and some negative results, as follows: (a) Every non-degenerate connected Abelian group c...

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Reconnecting flux-rope dynamo.

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ژورنال

عنوان ژورنال: Scientific American

سال: 1912

ISSN: 0036-8733

DOI: 10.1038/scientificamerican10051912-283a