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Portugaliae mathematica
Tome 47 (1990)
no. 1
Précédent
Suivant
Volume 47 (1990) no. 1
Sommaire
Locally free modules
Wolfson, Kenneth G.
p. 1-11
Errata to the article
Matos, Mário C.
p. 13
A remark on a Banach-Steinhaus theorem of Narang
Antosik, Piotr
;
Swartz, Charles
p. 15-17
On transnormal horizons of convex hypersurfaces
Wegner, Bernd
p. 19-24
The theory of bounding subsets of topological vector spaces without convexity condition
Bayoumi, Aboubakr
p. 25-42
Subtractive groupoids and laterally commutative heaps
Volenec, Vladimir
p. 43-45
Inequalities for Weierstrass products
Alzer, Horst
p. 47-59
Unbounded linear transformations of upper semi-Fredholm type in normed spaces
Cross, R.W.
p. 61-79
S-rationally convex domains and the approximation of Silva-holomorphic functions by S-rational functions
Paques, O.W.
;
Zaine, M.C.
p. 81-90
Closed form solutions of coupled algebraic and differential matrix equations
Jódar, Lucas
p. 91-97
The Fitting class generated by the
π
-perfect groups
Brison, Owen J.
p. 99-102
Matrices with prescribed similarity class and a prescribed nonprincipal submatrix
Silva, Fernando C.
p. 103-113