Sommaire

A linear algorithm to recognize maximal generalized outerplanar graphs
p. 225-230
Two classes of graphs related to extremal eccentricities
p. 231-241
The cross-ratio in Hjelmslev planes
p. 243-247
On $r$-extendability of the hypercube $Q\sb n$
p. 249-255
Noether theorem and first integrals of constrained Lagrangean systems
p. 257-265
$\lambda$-lattices
p. 267-272
Transversally symmetric immersions
p. 273-294
Normal spaces and the Lusin-Menchoff property
p. 295-299
Closed convex $l$-subgroups and radical classes of convergence $l$-groups
p. 301-315
Reflection and a mixed boundary value problem concerning analytic functions
p. 317-336