Sommaire du Fascicule no. 1

Long cycles and neighborhood union in 1-tough graphs with large degree sums
p. 5
A note on uniquely embeddable graphs
p. 15
The leafage of a chordal graph
p. 23
Degree sequences of digraphs with highly irregular property
p. 49
Paired-domination
p. 63
Equivalent classes for K₃-gluings of wheels
p. 73
New classes of critical kernel-imperfect digraphs
p. 85
Kernels in edge coloured line digraph
p. 91
The chromaticity of a family of 2-connected 3-chromatic graphs with five triangles and cyclomatic number six
p. 99
A path(ological) partition problem
p. 113
An inequality chain of domination parameters for trees
p. 127

Sommaire du Fascicule no. 2

On generating snarks
p. 147
Short cycles of low weight in normal plane maps with minimum degree 5
p. 159
On the simplex graph operator
p. 165
On independent sets and non-augmentable paths in directed graphs
p. 171
On hereditary properties of composition graphs
p. 183
A sufficient condition for the existence of k-kernels in digraphs
p. 197
Graphs maximal with respect to absence of hamiltonian paths
p. 205
On varieties of graphs
p. 209
Decomposition of multigraphs
p. 225
2-halvable complete 4-partite graphs
p. 233
A conjecture on cycle-pancyclism in tournaments
p. 243