Sommaire

Minimal immersions of surfaces into 4-dimensional space forms
p. 1-13
A generalization of separable torsion-free abelian groups
p. 15-21
ℱ-constraint of the automorphism group of a finite group
p. 23-30
An Ω + -estimate for the number of lattice points in a sphere
p. 31-40
On reduced products of abelian groups
p. 41-47
On the existence of projective and quasi-projective covers
p. 49-54
Rings S-radical over PI-subrings
p. 55-61
Sulle soluzioni di equazioni alle derivate parziali del primo ordine in insiemi di perimetro finito con termine noto misura
p. 63-87
An existence theorem for bounded solutions of differential equations in Banach spaces
p. 89-94
Note on the regular digraphs
p. 95-98
Materiali elastici approssimativamente vincolati
p. 99-117
A Stefan problem for the heat equation subject to an integral condition
p. 119-136
On normalization of Nash varieties
p. 137-145
Finite groups with a standard-component of type L 3 (4), II
p. 147-167
Modularität und Distributivität im Subidealverband einer Lie-Algebra
p. 169-177
A remark on a Harnack inequality for degenerate parabolic equations
p. 179-190
Una caratterizzazione reticolare del reticolo dei sottogruppi di un gruppo abeliano contenente due elementi aperiodici indipendenti
p. 191-207
The number of conjugacy classes in a finite nilpotent group
p. 209-216
On translation transversal designs
p. 217-229
On the quadratic optimal control problem for Volterra integro-differential equations
p. 231-247
Groups with soluble factor groups and projectivities
p. 249-260
Measurable products of modules
p. 261-269
Condizioni di continuità in una misura approssimante
p. 271-277