Several authors have defined operational quantities derived from the norm of an operator between Banach spaces. This situation is generalized in this paper and we present a general framework in which we derivate several maps $X\rightarrow \Bbb R$ from an initial one $X\rightarrow \Bbb R$, where $X$ is a set endowed with two orders, $\leq $ and $\leq ^{\ast }$, related by certain conditions. We obtain only three different derivated maps, if the initial map is bounded and monotone.
@article{116964, author = {Antonio Martin\'on}, title = {Generating real maps on a biordered set}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {32}, year = {1991}, pages = {265-272}, zbl = {0757.47013}, mrnumber = {1137787}, language = {en}, url = {http://dml.mathdoc.fr/item/116964} }
Martinón, Antonio. Generating real maps on a biordered set. Commentationes Mathematicae Universitatis Carolinae, Tome 32 (1991) pp. 265-272. http://gdmltest.u-ga.fr/item/116964/
Measures of Noncompactness in Banach Spaces, Marcel Dekker, Lecture Notes in Pure and Applied Math., vol.60; New York, Basel, 1980. | MR 0591679 | Zbl 0441.47056
Éléments de Mathématique. Topologie Générale, Hermann, Paris, 1971. | MR 0358652 | Zbl 1107.54001
On measures of noncompactness of linear operators and analogs of the minimal modulus for semi-Fredholm operators (in Russian), Spektr. Teor. Oper. 6 (1985), 182-195 Zbl 634 #47010. (1985)
Operational quantities and operator ideals, Actas XIV Jornadas Hispano-Lusas Mat. (1989), Univ. La Laguna, vol. I, 1990, 383-387. | MR 1112904
Operational quantities derived from the norm and measures of noncompactness, Proc. Royal Irish Acad., to appear. | MR 1173159
A generalization of semi-Fredholm operators, 1990, preprint.
Semigroups of operators and measures of noncompactness, J. Func. Anal. 7 (1971), 1-26. (1971) | MR 0273422 | Zbl 0209.45002
Generating operational quantities in Fredholm theory, Actas XIV Jornadas Hispano-Lusas Mat. (1989), Univ. La Laguna, vol. I, 1990, 449-453. | MR 1112916
Cantidades operacionales en Teoría de Fredholm (Tesis), Univ. La Laguna, 1989. | MR 1067932
Operator Ideals, North-Holland; Amsterdam, New York, Oxford, 1980. | MR 0582655 | Zbl 1012.47001
Quantities related to strictly singular operators, Indiana Univ. Math. J. 21 (1972), 1061-1071. (1972) | MR 0295103 | Zbl 0274.47007
The structure of certain linear operators (in Russian), Mat. Issled. 5 (1970), 166-175 MR 43 #2540; Zbl. 247 #47005. (1970) | MR 0276800
On the asymptotic behaviour of some quantities related to semi-Fredholm operators, J. London Math. Soc. (2) 31 (1985), 340-348. (1985) | MR 0809955 | Zbl 0582.47004
Über strikt singulare und strikt cosingulare Operatoren in Banachräumen (Dissertation), Univ. Bonn, 1974.
Geometric characteristics of semi-Fredholm operators and their asymptotic behaviour, Studia Math. 80 (1984), 219-234. (1984) | MR 0783991 | Zbl 0556.47008