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Extracta Mathematicae
Tome 6 (1991)
no. 1
Sommaire
On certain subsets of Bochner integrable function spaces.
Fernando Bombal
p. 1
Polynomial characterizations of Banach spaces not containing l1.
Joaquín M. Gutiérrez
p. 9
Quasi-Frobenius quotient rings.
José Gómez Torrecillas
;
Blas Torrecillas Jover
p. 12
On uniformly dense and m-dense subsets of C(X).
M.ª Isabel Garrido
;
Francisco Montalvo
p. 15
Polynomial characterizations of the Dunford-Pettis property.
Manuel González
;
Joaquín M. Gutiérrez
p. 17
A special type of triangulations in numerical nonlinear analysis.
José María Soriano
p. 20
A new proof that every weakly compact operator with domain L1(μ) is representable.
Diómedes Bárcenas
p. 24
Extending automorphisms to the rational fractions field.
Fernando Fernández Rodríguez
;
Agustín Llerena Achutegui
p. 25
On cyclic cubic fields.
Francisca Cánovas Orvay
p. 28
Monographic study of a cubic field.
Francisca Cánovas Orvay
p. 31
Baer invariants of crossed modules.
Leoncio Franco Fernández
p. 35
On some Fréchet interpolation spaces.
Jesús M. Fernández Castillo
p. 39
The factorization of the derivative of Dickson polynomials.
María T. Acosta de Orozco
;
Javier Gómez-Calderón
p. 42
Pontryagin duality and strong duality.
M.ª Jesús Chasco Ugarte
;
Elena Martín-Peinador
p. 44
Weak moduli of convexity.
Javier Alonso
;
Antonio Ullán
p. 47
The approximation of continuous linear functionals.
Sever Silvestru Dragomir
p. 50
On the Schatten Sφ classes.
Marilda A. Simôes
p. 52
A real inversion formula for the Kratzel's generalized Laplace transform.
Jorge J. Betancor
;
Javier A. Barrios
p. 55
A generalized Hankel transformation on the spaces Fp,μ.
Manuel T. Flores
;
Jorge J. Betancor
p. 58
Remarks on the weak-polynomial convergence on a Banach space.
Jesús A. Jaramillo
;
Angeles Prieto Yerro
p. 61