Geodesic

Volume 34 (2004) no. 2

Sommaire

A note about the order of an extensive map
Necks of automata
On the minimal length of semigroup presentations
A first-order logic for multi-algebras
Weaker universalities in semigroup varieties
The algebra of strongly full terms
Clone automorphisms and hypersubstitutions
On subdirect decomposition and varieties of some rings with involution. II
A note about shellable planar posets
Hypersubstitutions and groups
Congruences of concept algebras
On centralizers of monoids
A note on semilattice decompositions of completely {\large$\pi$}-regular semigroups
Composition of Abel-Grassmann's 3-bands
Problems posed at the Novi Sad Algebraic Conference 2003
Some open problems