Sommaire du Fascicule no. 1

Summaries of articles published in this issue
Mesures spéciales dans l'espace $E_2$
p. 1-23
Inverse semigroups determined by their lattices of inverse subsemigroups
p. 24-47
A characterization of 0-minimal $(m, n)$-ideals
p. 48-52
Embedding graphs in their complements
p. 53-62
Extensions of Lebesgue sets and of real-valued functions
p. 63-74
On linear functions on the sphere $S^2$
p. 75-82
Graph representations of finite Abelian groups
p. 83-86
On transformations of differential equations and systems with deviating argument
p. 87-90
Order completions of semiprime rings
p. 91-97
A characterization of polarities whose lattice of polars is Boolean
p. 98-102
Equiaffine Darboux motions with double roots
p. 103-113
On a Kneser problem for a system of nonlinear ordinary differential equations
p. 114-126
The lattice of equational theories. Part I: Modular elements
p. 127-152
On representations of tolerance ordered commutative semigroups
p. 153-158
An unconventional problem in the elementary theory of numbers
p. 159-169

Sommaire du Fascicule no. 2

Stability of abstract differential equations with the right-hand side smooth in the time variable
p. 171-193
The maximal regular ideal of the semigroup of binary relations
p. 194-198
Congruences on conventional semigroups
p. 199-205
Prime selectors in lattice-ordered groups
p. 206-217
Homopolar circuits in polar graphs
p. 218-228
On quasi-Riemannian fiber manifold
p. 229-240
A Cauchy type condition and integrability
p. 241-274
Multivalued mappings and Filippov's operation
p. 275-288
Bifurcations and biological observables
p. 289-300
Decomposition of isometries of isotropic $U_n(V)$ over finite fields into simple isometries
p. 301-305
On value selectors and torsion classes of lattice ordered groups
p. 306-313
Semi-continuity and weak-continuity
p. 314-321
On Segal's postulates for general quantum mechanics
p. 322-324
Prime selectors and torsion classes of lattice ordered groups
p. 325-337
Academician Štefan Schwarz awarded the 1980 National Prize of the Slovak Socialist Republic
p. 338-339

Sommaire du Fascicule no. 3

Summaries of articles published in this issue
Non-commutative interpolation of Sobolev-Besov and Lebesgue spaces with weights
p. 341-367
Embeddings into categories with fixed points in representations
p. 368-389
On $o$-ideals of groups of divisibility
p. 390-403
Stability at constantly acting disturbances of abstract differential equations with the right-hand sides smooth in the time variable
p. 404-412
On a nonlinear integral equation
p. 413-420
Connections in associated fibre bundles
p. 421-432
Characterizations of certain classes of posets having Gs-lattices of a relatively small size
p. 433-450
Some remarks on distributive groupoids
p. 451-456
Regelflächen festen Dralls mit konstant gedralltem Striktionsband
p. 457-468
Hypergraphs and intervals
p. 469-474
Elevation of a graph
p. 475-483
A note on dimension of $P^n_3$
p. 484-487
Book Reviews. EQUADIFF IV. Proceedings
News and Notices. In memoriam Professor Alois Urban
p. 489-493
The 60th anniversary of Professor František Šik
p. 494-500

Sommaire du Fascicule no. 4

Generalized boundary value problems with abstract side conditions and their adjoints. II
p. 501-509
On the lattice of torsion classes of lattice ordered groups
p. 510-513
Dimension of the sum of two copies of a graph
p. 514-520
Reflexive and antisymmetric relations and their systems
p. 521-530
Antitone operators and ordinary differential equations
p. 531-553
Sets of solutions of differential relations
p. 554-568
Smoothness of a typical convex function
p. 569-572
The lattice of equational theories. Part II: The lattice of full sets of terms
p. 573-603
A new characterization of the maximum genus of a graph
p. 604-613
Generalized multiple Perron integrals and the Green-Goursat theorem for differentiable vector fields
p. 614-632
Commutative Moufang loops and distributive groupoids of small orders
p. 633-669
Existence and uniqueness of solutions for nonlinear alternative problems in a Banach space
p. 670-678
Professor Ladislav Mišík sexagenarian
p. 679-680