Tame Spaces and Power Series Spaces.
Dietmar Vogt (1987)
Mathematische Zeitschrift
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Dietmar Vogt (1987)
Mathematische Zeitschrift
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Tosun Terzioglu, Dietmar Vogt (1989)
Revista Matemática de la Universidad Complutense de Madrid
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We define two new normability conditions on Fréchet spaces and announce some related results.
Nguyen Van Khue (1990)
Annales Polonici Mathematici
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Camillo Trapani (2003)
Studia Mathematica
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Different types of seminorms on a quasi *-algebra (𝔄,𝔄₀) are constructed from a suitable family ℱ of sesquilinear forms on 𝔄. Two particular classes, extended C*-seminorms and CQ*-seminorms, are studied in some detail. A necessary and sufficient condition for the admissibility of a sesquilinear form in terms of extended C*-seminorms on (𝔄,𝔄₀) is given.
Ed Dubinsky (1975)
Studia Mathematica
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Elisabetta M. Mangino (1996)
Revista de la Real Academia de Ciencias Exactas Físicas y Naturales
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H. Millington (1974)
Mathematische Annalen
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N. Kalton (1995)
Studia Mathematica
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We construct a quasi-Banach space X which contains no basic sequence.
J. M. Delgado, C. Piñeiro, E. Serrano (2010)
Studia Mathematica
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For p ≥ 1, a set K in a Banach space X is said to be relatively p-compact if there exists a p-summable sequence (xₙ) in X with . We prove that an operator T: X → Y is p-compact (i.e., T maps bounded sets to relatively p-compact sets) iff T* is quasi p-nuclear. Further, we characterize p-summing operators as those operators whose adjoints map relatively compact sets to relatively p-compact sets.
Fernando Albiac, José Ansorena (2012)
Open Mathematics
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Unlike for Banach spaces, the differentiability of functions between infinite-dimensional nonlocally convex spaces has not yet been properly studied or understood. In a paper published in this Journal in 2006, Bayoumi claimed to have discovered a new notion of derivative that was more suitable for all F-spaces including the locally convex ones with a wider potential in analysis and applied mathematics than the Fréchet derivative. The aim of this short note is to dispel this misconception,...
Markus Poppenberg (1991)
Manuscripta mathematica
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Aboubakr Bayoumi (2006)
Open Mathematics
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We prove that the Quasi Differential of Bayoumi of maps between locally bounded F-spaces may not be Fréchet-Differential and vice versa. So a new concept has been discovered with rich applications (see [1–6]). Our F-spaces here are not necessarily locally convex
Lawrence Crone, William Robinson (1975)
Studia Mathematica
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Zoran Kadelburg, Stojan Radenović (2002)
Matematički Vesnik
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