Geodesic
Operational quantities
Commentationes Mathematicae Universitatis Carolinae, Tome 38 (1997) no. 3, pp. 471-484 Cet article a éte moissonné depuis la source Czech Digital Mathematics Library

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In this paper we consider maps called operational quantities, which assign a non-negative real number to every operator acting between Banach spaces, and we obtain relations between the kernels of these operational quantities and the classes of operators of the Fredholm theory.
In this paper we consider maps called operational quantities, which assign a non-negative real number to every operator acting between Banach spaces, and we obtain relations between the kernels of these operational quantities and the classes of operators of the Fredholm theory.
Classification : 47A53, 47A55
Keywords: operational quantities; Fredholm theory 
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     author = {Martin\'on, Antonio},
     title = {Operational quantities},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {471--484},
     year = {1997},
     volume = {38},
     number = {3},
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     zbl = {1119.47014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1997_38_3_a4/}
}
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Martinón, Antonio. Operational quantities. Commentationes Mathematicae Universitatis Carolinae, Tome 38 (1997) no. 3, pp. 471-484. http://geodesic.mathdoc.fr/item/CMUC_1997_38_3_a4/