Geodesic

Sommaire du Fascicule no. 1

On some properties of third-order linear differential equation
p. 3-18
A theorem concerning the restriction of the $\cal D$-structure of a semigroup $S$ to a subsemigroup of $S$
p. 19-22
Hadwiger numbers of finite graphs
p. 23-30
Polars and X-ideals in semigroups
p. 31-37
On the Hahn-Banach theorem
p. 39-45
An extension of Brunovský's Scorza-Dragoni type theorem for unbounded set-valued functions
p. 47-52
On the existence of critically n-connected graphs
p. 53-56
The tensor product of right groups
p. 57-61
b-equivalent multilattices
p. 63-72

Sommaire du Fascicule no. 2

Fastideale in vollständig O-einfachen Halbgruppen
p. 73-76
Parity of numbers of crossings for complete $n$-partite graphs
p. 77-95
A generalized continuity and product spaces
p. 97-99
The incidence submanifold of $RP^n\times G_1(RP^n)$ for $n$ odd is nonorientable
p. 101-102
Cantor extension of a mixed product of directed groups
p. 103-114
The extremal connectivity of the strictly weak digraph
p. 115-118
Characterization of distributive multilattices by a betweenness relation
p. 119-129
On some properties of transformations of a logic
p. 131-137
О колеблемости и монотонности решений нелинейных дифференвиалных уравнений с запаздывающим аргументом
p. 139-152
The Hadwiger number of an infinite graph
p. 153-157
Profesor Tibor Šalát päťdesiatročný

Sommaire du Fascicule no. 3

Independence in Klein spaces
p. 161-170
Complete and pseudocomplete colourings of a graph
p. 171-184
Darboux property for functions of several variables
p. 185-192
On an extension of finite functionals by the transfinite induction
p. 193-200
On the unique factorization problem
p. 201-205
Semigroups and the structure of categories
p. 207-216
О колеблемости решений нелинейного дифференциального уравнения третьего порядка
p. 217-227
On quasiparabolical differential equations of higher order
p. 229-240
Quelques remarques sur les classes de Baire des fonctions de deux variables
p. 241-246
Neighborhoods of the identity of the free abelian topological groups
p. 247-256
Book Reviews

Sommaire du Fascicule no. 4

On a class of generalized Hermite polynomials
p. 257-269
One generalization of quasifield
p. 271-285
Rot-quasigroups as isotopes of Abelian groups
p. 287-298
On the distribution of zeros of exponential polynomials
p. 299-307
On the Frattini ideal in compact semigroups
p. 309-315
Гомоморфизмы унарных алгебрь
p. 317-322
A note on comparison theorems for third-order linear differential equations
p. 323-327
On magic graphs
p. 329-335
Oscillatoriness of solutions of a nonlinear second order differential equation
p. 337-342
Intersection graphs of trees and tree algebras
p. 343-350
Disconjugacy criteria for linear vector differential equations
p. 351-360
Book Reviews
News and Notices
p. 361-366