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Portugaliae mathematica
Tome 46 (1989)
no. 1
Précédent
Suivant
Volume 46 (1989) no. 1
Sommaire
Tor-invariance des algèbres de Lie résolubles et des algèbres filtrées
Barou, Geneviève
p. 1-16
Linear stability theory of solitary waves arising from Hamiltonian systems with symmetry
Stubbe, Joachim
p. 17-32
Commutative rings whose principal ideals are annihilators
Camillo, Victor P.
p. 33-37
A note on some absolute summability methods
Bor, Hüseyin
p. 39-46
The spectrum of a separated presheaf and the relation between totally fuzzy subsets and fuzzy subsets; application to fuzzy topology
Coulon, Josette
;
Coulon, Jean-Louis
p. 47-57
Comparison of regular convolutions
Haukkanen, Pentti
p. 59-69
Total oscillatory behaviour globally in the delays
Arino, O.
;
Ferreira, José M.
p. 71-86
On the invariant factors of sums of integral matrices
Marques de Sá, Eduardo
p. 87-95
A direct approach to one variable noncommutative calculus
Almeida, P.
p. 97-114