Geodesic

Volume 22 (2021) no. 1

Sommaire

From the editor
To the 80th anniversary of Alexander Vasilyevich Mikhalev
p. 8-26
70 year jubilee of academician Alexei~L.~Semenov
p. 27-56
On the possibility of a periodic word reconstruction from the subwords of fixed length
p. 57-66
Note on the mean absolute value theorem for the Dirichlet's L-function in the critical stripe
p. 67-75
Construction of some mutual arrangements of M-cubic and M-quintic
p. 76-91
Stochastic analysis to mechanical system to its reliability with varrying repairing services
p. 92-104
Designing megastable systems with multidimensional lattice of chaotic attractors
p. 105-117
Tropical sequences associated with Somos sequences
p. 118-132
Criterion for the existence of a consistent protocol in a partial erasure channel
p. 133-151
Factor analysis method applied to the results of crowdfunding projects
p. 152-162
On the coercitive solvability of the non-linear Laplace--Beltrami equation in Hilbert space
p. 163-176
Сharacterization of distributive lattices of quasivarieties of unars
p. 177-187
Commutative semigroups with bounded orders of subdirectly irreducible acts
p. 188-199
Filial rings on direct sums and direct products of torsion-free abelian groups
p. 200-212
The projective geometry over partially ordered skew fields,~II
p. 213-224
On two formulas for Macdonald functions and their group-theoretical sense
p. 225-233
On a locally nilpotent radical Jacobson for special Lie algebras
p. 234-272
Weak Faddeev--Takhtajan--Volkov algebras. Lattice Wn algebras
p. 273-291
Moderately partial algebras whose equivalence relations are congruences
p. 292-303
The lattice of definability. Origins and directions of research
p. 304-327
The convergence condition for improper short integrals in terms of Newton polytopes
p. 328-339
Homomorphisms from infinite semilcyclic n-groups to a semiabelian n-group
p. 340-352
Endomorphisms of semicyclic n-groups
p. 353-369
Mathematical variational method for determining the effective yield strength of two-component composite materials
p. 370-377
Mathematical regularities of the sliding friction process of a porous material based on iron impregnated with lubricating oil with dispersed particles of fluorinated graphene
p. 378-389
Mathematical regularities of changes in the characteristics of the friction process of a porous composite material based on copper containing oil with graphene particles
p. 390-402
At the sharp turns of the 20th century European history
p. 403-412
Productive education in the mathematical school
p. 413-446
Essay of history of topological education in Nizhny Novgorod
p. 447-459
Diffraction of cylindrical sound waves by an elastic cylinder with an radially inhomogeneous coating
p. 460-472
Basic equations determining stress-strain plastic state of metal materials taking into account their physical and structural parameters
p. 473-481
On the sequence of the first binary digits of the fractional parts of the values of a polynomial
p. 482-487
Formal security models
p. 488-494
A remark on a product of two formational tcc-subgroups
p. 495-501
35 years of school informatics. How the foundation of modern informatics and informatization of education was created
p. 502-519
Computer science, computer, computational complexity
p. 520-536