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CONNECTEDNESS IN SOME TOPOLOGICAL VECTOR-LATTICE GROUPS OF SEQUENCES

LECH DREWNOWSKI and MAREK NAWROCKI
Mathematica Scandinavica
Vol. 107, No. 1 (2010), pp. 150-160
Published by: Mathematica Scandinavica
Stable URL: http://www.jstor.org/stable/24493701
Page Count: 11
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
CONNECTEDNESS IN SOME TOPOLOGICAL VECTOR-LATTICE GROUPS OF SEQUENCES
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Abstract

Let η be a strictly positive submeasure on N. It is shown that the space ω(η) of all real sequences, considered with the topology τη of convergence in submeasure η, is (pathwise) connected iff η is core-nonatomic. Moreover, for an arbitrary submeasure η, the connected component of the origin in ω(η) is characterized and shown to be an ideal. Some results of similar nature are also established for general topological vector-lattice groups as well as for the topological vector groups of Banach space valued sequences with the topology τη.

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