Geodesic

Sommaire du Fascicule no. 1

Volodymyr Kyrychenko (to the 75th anniversary)
p. C-E
On hereditary reducibility of 2-monomial matrices over commutative rings
p. 1-11
On indices and eigenvectors of quivers
p. 12-19
Generalized classes of suborbital graphs for the congruence subgroups of the modular group
p. 20-36
The lattice of quasivarietes of modules over a~Dedekind ring
p. 37-49
On the number of topologies on a finite set
p. 50-57
Conjugacy in finite state wreath powers of finite permutation groups
p. 58-69
On free vector balleans
p. 70-74
Classification of homogeneous Fourier matrices
p. 75-84
A Ramsey algebraic study of matrices
p. 85-98
On certain families of sparse numerical semigroups with Frobenius number even
p. 99-116
Planarity of a spanning subgraph of~the~intersection graph of ideals of~a~commutative ring~II, Quasilocal Case
p. 117-143
Representations of ordered doppelsemigroups by~binary relations
p. 144-154

Sommaire du Fascicule no. 2

Volodymyr Kyrychenko (17.06.1942\,--\,02.04.2019)
p. C-D
A family of doubly stochastic matrices involving Chebyshev polynomials
p. 155-164
Automorphism groups of superextensions of finite monogenic semigroups
p. 165-190
On cospectral signed digraphs
p. 191-201
The classification of serial posets with the non-negative quadratic Tits form being principal
p. 202-211
Globalizations for partial (co)actions on~coalgebras
p. 212-242
Solutions of the matrix linear bilateral polynomial equation and their structure
p. 243-251
On the lattice of cyclic codes over finite chain rings
p. 252-268
On the inclusion ideal graph of a poset
p. 269-279
Commutator subgroups of the power subgroups of generalized Hecke groups
p. 280-291
On some Leibniz algebras having small dimension
p. 292-308