Geodesic

Sommaire du Fascicule no. 1

Almost all derivative quivers of artinian biserial rings contain chains
p. 1-5
Green's relations on the seminearring of full hypersubstitutions of type (n)
p. 6-19
Multi-algebras from the viewpoint of algebraic logic
p. 20-31
A note on maximal ideals in ordered semigroups
p. 32-35
On intersections of normal subgroups in free groups
p. 36-67
Direct decompositions of artinian modules related to formations of groups
p. 68-76
Hyperbolic spaces from self-similar group actions
p. 77-86
Principal quasi-ideals of cohomological dimension~1
p. 87-92
Uniform ball structures
p. 93-102
An additive divisor problem in Z[i]
p. 103-110
Ramseyan variations on symmetric subsequences
p. 111-124

Sommaire du Fascicule no. 2

On check character systems over quasigroups and loops
p. 1-13
On power structures
p. 14-35
Flows in graphs and the homology of free categories
p. 36-46
Tiled orders over discrete valuation rings, finite Markov chains and partially ordered sets.~II
p. 47-86
On the representation of a~number as a~sum of the k-th powers in an arithmetic progression
p. 87-92
On large indecomposable modules, endo-wild representation type and right pure semisimple rings
p. 93-118

Sommaire du Fascicule no. 3

N~-- real fields
p. 1-6
An algebraic version of the Strong Black Box
p. 7-45
On equivalence of some subcategories of modules in Morita contexts
p. 46-53
Gyrogroups and left gyrogroups as transversals of a~special kind
p. 54-81
H− and R−cross-sections of the full finite semigroup Tn
p. 82-88
The commutator Hopf Galois extensions
p. 89-94
On the separability of the restriction functor
p. 95-101
On a~group theoretical construction of expanding graphs
p. 102-109

Sommaire du Fascicule no. 4

R.\,I.~Grigorchuk (his 50th birthday)
p. E-F
Publications of R.~Grigorchuk
p. G-M
On subgroups of saturated or totally bounded paratopological groups
p. 1-20
Post-critically finite self-similar groups
p. 21-32
Automorphisms of homogeneous symmetric groups and hierarchomorphisms of rooted trees
p. 33-49
Binary coronas of balleans
p. 50-65
On 2-state Mealy automata of polynomial growth
p. 66-85
Dynamics of finite groups acting on the boundary of homogenous rooted tree
p. 86-91
Structural properties of extremal asymmetric colorings
p. 92-117
On faithful actions of groups and semigroups by orientation-preserving plane isometries
p. 118-125