Sommaire

Contents
A solution of an equation for indexed functions
p. 3-8
The period of oscillations in non-linear systems
p. 9-16
On convex constructions in lattices
p. 17-27
A new simple approach to linear dependence
p. 29-32
A note on some separable location problems - a multicriterial approach
p. 33-41
Unions of subquasigroups
p. 43-54
Quasigroups which are unions of three proper subquasigroups
p. 55-66
BGG diagrams for contact graded odd dimensional orthogonal geometries
p. 67-77
The BGG diagram for contact orhogonal geometry of even dimension
p. 79-96