Sommaire du Fascicule no. 1

Contents
On cyclic hypergroups with period
p. 3-7
Constructions d'hyperanneaux à partir d'anneaux
p. 9-13
$P$-hypergoupes
p. 15-20
Cancellative relations and matrices
p. 21-31
On generalized fuzzy relation equations: necessary and sufficient conditions for the existence of solutions
p. 33-37
On Bumby's equation $(x^2 - 2)^2 - 2=2y^2$: a solution via pythagorean triples
p. 39-40
Low-temperature cycling and its effect on structural state and mechanical properties of metals and alloys
p. 41-55
Alternative definitions of $J$-density topology
p. 57-61

Sommaire du Fascicule no. 2

Foreword
A note on zero-dimensional preimages of compact spaces
p. 5-7
De Morgan's and strong De Morgan's laws in a topos of shaves
p. 9-12
Minimal rearrangements of Sobolev functions
p. 13-24
Characterization of Tournaments by Coned 3-Cycles
p. 25-30
Mappings of continuous functions on hyper-Stonean spaces
p. 31-40
Leaves, excesses and neighborhoods
p. 41-47
Some remarks on almost radiality in function spaces
p. 49-58
Packing measures on Euclidean spaces
p. 59-66
On relations approximated by continuous functions
p. 67-72
On Hamiltonian cycles in two-triangle graphs
p. 73-78
On Nemytskii Lipschitzian operator
p. 79-82
Generalized Vitali systems of uniform type
p. 83-93
$T_2$-separation axioms on frames
p. 95-98
Symmetric selective derivatives
p. 99-100
Properties of measure and category in generalized Cohen's and Silver's forcing
p. 101-115
Generic well-posedness in some classes of optimization problems
p. 117-125
Structural properties of operator spaces
p. 127-136
On categories of supertopological spaces
p. 137-149
Cartesian subdirect irreducibility in graphs
p. 151-156
Strict differentiability via differentiability
p. 157-159