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Disjointly strictly singular operators and interpolation*

Published online by Cambridge University Press:  14 November 2011

A. García del Amo
Affiliation:
Departamento de Análisis Matemático, Facultad de C. Matemáticas, Universidad Complutense de Madrid, 28040 Madrid, Spain e-mail (A. García del Amo): GARCIADA@MAT.UCM.ES
F. L. Hernández
Affiliation:
Departamento de Análisis Matemático, Facultad de C. Matemáticas, Universidad Complutense de Madrid, 28040 Madrid, Spain e-mail (F. L. Hernández): PACOH@MAT.UCM.ES
C. Ruiz
Affiliation:
Departamento de Análisis Matemático, Facultad de C. Matemáticas, Universidad Complutense de Madrid, 28040 Madrid, Spain e-mail (C. Ruiz): CRUIZB@SUNAM1.MAT.UCM.ES

Abstract

Interpolation properties of the class of disjointly strictly singular operators on Banach lattices are studied. We also give some applications to compare the lattice structure of two rearrangement invariant function spaces. In particular, we obtain suitable analytic characterisations of when the inclusion map between two Orlicz function spaces is disjointly strictly singular.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1996

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References

1Bennett, C. and Sharpley, R.. Interpolation of operators (New York: Academic Press, 1988).Google Scholar
2Bergh, J. and Löfström, J.. Interpolation spacest. An introduction (Berlin: Springer, 1976).Google Scholar
3Beucher, O. J.. On interpolation of strictly (co-) singular linear operators. Proc. Roy. Soc. Edinburgh Sect. A 112 (1989), 263–9.CrossRefGoogle Scholar
4Cobos, F., Kühn, T. and Schonbek, T.. One-sided compactness results for Aronszajn-Gagliardo functors. J. Funct. Anal. 106 (1992), 274313.CrossRefGoogle Scholar
5Dilworth, S. J.. A scale of linear spaces related to the Lp scale. Illinois J. Math. 34 (1990), 140–58.CrossRefGoogle Scholar
6Amo, A. Garcia del. Clases de operadores singulares en reticulos de Banach. Desigualdades con pesos y funciones maximales (Ph.D. Thesis, Universidad Complutense de Madrid, 1993).Google Scholar
7Amo, A. García del and Hernández, F. L.. On embeddings of function spaces into Lp + Lq. Contemp. Math. 144 (1993), 107–13.Google Scholar
8Gustavsson, J. and Peetre, J.. Interpolation of Orlicz spaces. Studia Math. 60 (1977), 3359.CrossRefGoogle Scholar
9Heinrich, S.. Closed operator ideals and interpolation. J. Funct. Anal. 35 (1980), 397411.CrossRefGoogle Scholar
10Hernández, F. L.. Disjointly strictly-singular operators in Banach lattices. 18th Winter School on Abstract Analysis (Srni, 1990). Acta Univ. Carolin.-Math. Phys. 31 (1990), 3540.Google Scholar
11Hernández, F. L. and Rodriguez-Salinas, B.. On lp-complemented copies in Orlicz spaces II. Israel J. Math. 68 (1989), 2755.CrossRefGoogle Scholar
12Hernández, F. L. and Rodriguez-Salinas, B.. Orlicz spaces containing singular lp-complemented copies. Function spaces Conference (Poznań, 1989). Teubner-Texte Math. 120 (1991), 1522.Google Scholar
13Hernández, F. L. and Ruiz, C.. Universal classes of Orlicz function spaces. Pacific J. Math. 155 (1992), 8798.CrossRefGoogle Scholar
14Hudzik, H.. Notes on Orlicz spaces. Function spaces Conference (Poznań, 1989). Teubner-Texte Math. 120 (1989), 23–9.Google Scholar
15Kalton, N. J.. Orlicz sequence spaces without local convexity. Math. Proc. Cambridge Philos. Soc. 81 (1977), 253–77.Google Scholar
16Lindenstrauss, J. and Tzafriri, L.. Classical Banach spaces, Vol. II (Berlin: Springer, 1979).Google Scholar
17Nielsen, N. J.. On the Orlicz function spaces LM(0, ∞). Israel J. Math. 20 (1975), 237–59.Google Scholar
18Novikov, S. Ya.. Boundary spaces for inclusion map between rearrangement invariant spaces. Function spaces (Poznań, 1992). Collect. Math. 44 (1993), 211–15.Google Scholar
19Novikov, S. Ya., Semenov, E. M. and Tokarev, E. V.. The structure of subspaces of the space Λp(φ). Soviet Math. Dokl. 20 (1979), 760–1.Google Scholar
20Persson, L. E.. Interpolation with a parameter function. Math. Scand. 59 (1986), 199222.CrossRefGoogle Scholar
21Pietsch, A.. Operator ideals (Amsterdam: North-Holland, 1980).Google Scholar
22Popa, N.. Uniqueness of the symmetric structure in Lp(µ) for 0 < p < 1. Rev. Roumaine Math. Pures Appl. 27 (1982), 1061–89.Google Scholar
23Popa, N.. Interpolation theorems for rearrangement invariant p-spaces of functions, 0 < p < 1, and some applications. 10th Winter School on Abstract Analysis (Srní, 1982). Rend. Circ. Mat. Palermo (2) 1982, Suppl. 2 (1982), 199216.Google Scholar
24Ruiz, C.. Estructura de espacios de Orlicz de funciones y de sucesiones con pesos. Subespacios distinguidos (Ph.D. Thesis, Universidad Complutense de Madrid, 1990).Google Scholar
25Schaefer, H. H.. Banach lattices and positive operators (Berlin: Springer, 1974).CrossRefGoogle Scholar