Sommaire du Fascicule no. 1

Bounds on the subdominant eigenvalue involving group inverses with applications to graphs
p. 1-20
On ideals and congruences in BCC-algebras
p. 21-29
Homomorphisms between $A$-projective Abelian groups and left Kasch-rings
p. 31-43
Interpolation theorems for a family of spanning subgraphs
p. 45-53
Characterizations of absolute $F_{\sigma\delta}$-sets
p. 55-64
On a bound on algebraic connectivity: the case of equality
p. 65-76
On operators with the same local spectra
p. 77-83
Compact attractor for weakly damped driven Korteweg-de Vries equations on the real line
p. 85-94
On Lipschitz conditions for ordinary differential equations in Fréchet spaces
p. 95-103
Small idempotent clones. I
p. 105-118
Local properties of accessible injective operator ideals
p. 119-133
Some cardinal characteristics of ordered sets
p. 135-144
Distributional derivatives of functions of two variables of finite variation and their application to an impulsive hyperbolic equation
p. 145-171
Weak baer modules localized with respect to a torsion theory
p. 173-176
Sixty years of professor František Neuman
p. 177-183
In memoriam Professor Miloš Zlámal
p. 185-191

Sommaire du Fascicule no. 2

Approximation of almost periodic functions by periodic ones
p. 193-205
Double convergence and products of Fréchet spaces
p. 207-227
Lexicographic product decompositions of cyclically ordered groups
p. 229-241
The ${\scr Ar}$-free products of archimedean $l$-groups
p. 243-252
Radical classes of generalized Boolean algebras
p. 253-268
Singular Dirichlet boundary value problems. II: Resonance case
p. 269-289
On the existence of optimal controls for nonlinear infinite dimensional systems
p. 291-312
Pointwise convergence fails to be strict
p. 313-320
A note on distributive double $p$-algebras
p. 321-327
The maximum genus, matchings and the cycle space of a graph
p. 329-339
Coincidence and fixed point theorems for nonlinear hybrid generalized contractions
p. 341-357
Affine completness of projectable lattice ordered groups
p. 359-363
DRl-semigroups and $MV$-algebras
p. 365-372
Nonuniqueness results for ordinary differential equations
p. 373-384

Sommaire du Fascicule no. 3

On the extension of $D$-poset valued measures
p. 385-394
Geometrical aspects of the covariant dynamics of higher order
p. 395-412
Generalized variational inequalities and associated nonlinear equations
p. 413-418
An asymptotic theorem for a class of nonlinear neutral differential equations
p. 419-432
Interpolation theorem for a continuous function on orientations of a simple graph
p. 433-438
On $\sigma$-discrete Borel mappings via quasi-metrics
p. 439-455
Best simultaneous $L_p$ approximations
p. 457-463
Extension of vector measures
p. 465-472
Equimorphy in varieties of distributive double $p$-algebras
p. 473-544
Almost hyper-Hermitian structures in bundle spaces over manifolds with almost contact $3$-structure
p. 545-563
The Kurzweil construction of an integral in ordered spaces
p. 565-574
On archimedean $MV$-algebras
p. 575-582
Variational equations along integral curves of a projectable system of vector fields
p. 583-596
Complete generators and maximal completions of $MV$-algebras
p. 597-608

Sommaire du Fascicule no. 4

On the defect spectrum of an extension of a Banach space operator
p. 609-616
Second order differentiability and Lipschitz smooth points of convex functionals
p. 617-640
$\sigma$-elements in multiplicative lattices
p. 641-651
On the Neumann-Poincaré operator
p. 653-668
On $L$-fuzzy ideals in semirings. I
p. 669-675
Nonoscillation and asymptotic behaviour for third order nonlinear differential equations
p. 677-685
Localization of global existence of holomorphic solutions of holomorphic differential equations with infinite dimensional parameter
p. 687-700
An algebraic characterization of geodetic graphs
p. 701-710
A gradient estimate for solutions of the heat equation
p. 711-725
Pseudo-symmetric ideals of semigroup and their radicals
p. 727-735
Convergence estimate for second order Cauchy problems with a small parameter
p. 737-745
Über symmetrische Operatoren auf Banachverbänden und Arens-Regularität
p. 747-753
Translativity of absolute weighted mean summability
p. 755-761
Solution of the Neumann problem for the Laplace equation
p. 763-784
On a class of real normed lattices
p. 785-792
Antiatomic retract varieties of monounary algebras
p. 793-808
A new proof of a characterization of the set of all geodesics in a connected graph
p. 809-813
Some results on projection of planar sets
p. 815-820
On covers in the lattice of representable $\ell$-varieties
p. 821-831