Bi-strictly cyclic operators.
Froelich, John, Mathes, Ben (1995)
The New York Journal of Mathematics [electronic only]
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Froelich, John, Mathes, Ben (1995)
The New York Journal of Mathematics [electronic only]
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Subhash Chander Arora, Pawan Bala (1991)
Czechoslovak Mathematical Journal
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Aleš Drápal (1985)
Czechoslovak Mathematical Journal
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Igor M. Burlakov, Marek Jukl (2016)
Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
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The article deals with spaces the geometry of which is defined by cyclic and anticyclic algebras. Arbitrary multiplicative function is taken as a fundamental form. Motions are given as linear transformation preserving given multiplicative function.
Takakura, Mayumi (2009)
International Journal of Mathematics and Mathematical Sciences
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A. Iwanik (1991)
Bulletin de la Société Mathématique de France
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David P. Blecher, Matthew Neal (2012)
Studia Mathematica
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We generalize some aspects of the theory of compact projections relative to a C*-algebra, to the setting of more general algebras. Our main result is that compact projections are the decreasing limits of 'peak projections', and in the separable case compact projections are just the peak projections. We also establish new forms of the noncommutative Urysohn lemma relative to an operator algebra, and we show that a projection is compact iff the associated face in the state space of the...