Geodesic

Sommaire du Fascicule no. 1

Finite $2$-groups with a non-Dedekind non-metacyclic norm of Abelian non-cyclic subgroups
p. 3-19
$n$-Torsion regular rings
p. 20-29
On invariant submanifolds of $S$-manifolds
p. 30-38
On fully idempotent semimodules
p. 39-51
On generalization of the notion of Moufang loop to $n$-ary case
p. 52-70
Finite non-commutative associative algebras for setting the hidden discrete logarithm problem and post-quantum cryptoschemes on its base
p. 71-78
On the number of topologies on countable fields
p. 79-90
Isohedral tilings by $14$-, $16$- and $18$-gons for hyperbolic translation group of genus two
p. 91-102
A note on almost contact metric $2$- and $3$-hypersurfaces in $W_4$-manifolds
p. 103-108
Morita contexts and closure operators in modules
p. 109-122
Examples of bipartite graphs which are not cyclically-interval colorable
p. 123-126
Academician Vladimir Arnautov — 80th anniversary
p. 127-128

Sommaire du Fascicule no. 2

Limit cycles in continuous and discontinuous piecewise linear differential systems with two pieces separated by a straight line
p. 3-12
The problem of the center for cubic differential systems with the line at infinity and an affine real invariant straight line of total algebraic multiplicity five
p. 13-40
The topological classification of a family of quadratic differential systems in terms of affine invariant polynomials
p. 41-55
Levitan almost periodic solutions of infinite-dimensional linear differential equations
p. 56-78
The classification of a family of cubic differential systems in terms of configurations of invariant lines of the type $(3,3)$
p. 79-98
On the upper bound of the number of functionally independent focal quantities of the Lyapunov differential system
p. 99-112
On limit cycles of polynomial systems of the first-order ODE's
p. 113-126
Sufficient $GL(2, \mathbb{R})$-invariant center conditions for some classes of two-dimensional cubic differential systems
p. 127-136
Invariant conditions of stability of unperturbed motion governed by critical differential systems $s(1,2,3)$
p. 137-153
Working with professor Nicolae Vulpe
p. 154-160

Sommaire du Fascicule no. 3

A note on existence results for a nonlinear fourth-order integral boundary value problem
p. 3-9
Existence of positive periodic solutions for fourth-order nonlinear neutral differential equations with variable coefficients
p. 10-21
Statistical $\Lambda$-convergence in intuitionistic fuzzy normed spaces
p. 22-33
Asymptotically almost periodic and asymptotically almost automorphic vector-valued generalized functions
p. 34-53
Binary linear programming approach to graph convex covering problems
p. 54-59
Optimal control of a stochastic system related to the Kermack-McKendrick model
p. 60-64
Polynomial differential systems with explicit expression
p. 65-74
On the structural theory and theory of radicals
p. 74-94