Geodesic

Sommaire du Fascicule no. 57

A refinement of the boundary element collocation method near the boundary of domain in the case of two-dimensional problems of non-stationary heat conduction with boundary conditions of the second and third kind
p. 5-25
The effect of approximating functions in the construction of the stiffness matrix of the finite element on the convergence rate of the finite element method
p. 26-37
Adaptive estimation in a heteroscedastic nonparametric regression
p. 38-52
Influence of nonlinear rigidity of elastic elements on the $L$-$L$ type two-mass micromechanical gyroscope dynamics in a forced-oscillation regime
p. 53-61
Investigation of a carbon nanofabric permeability
p. 62-75
Development of the approaches for solving an inverse problem of external ballistics in various application conditions
p. 76-83
Stress components near the singular points at a load-free end section of a layered cylinder
p. 84-98
Distinctive features of calculating interaction between shock wave and gas bubble in a finely dispersed gas suspension
p. 99-110
Distinctive features of the heat propagation from a localized source under the high-frequency vibration conditions
p. 111-124

Sommaire du Fascicule no. 58

On the class of two-dimensional geodesic curves in the field of the gravity force
p. 5-13
Improved model selection method for an adaptive estimation in semimartingale regression models
p. 14-31
Canonical system of basic invariants for unitary group $W(K_5)$
p. 32-40
Left-invariant almost para-Hermitian structures on some six-dimensional nilpotent Lie groups
p. 41-55
Numerical investigation of non-Newtonian fluid flow through a pipe sudden contraction
p. 56-70
Investigation of the structure of non-isothermal power-law fluid flow in an $\mathrm{L}$-shaped channel
p. 71-83
Impact of the crack direction in a multistage hydraulic fracturing on the oil recovery factor
p. 84-98
Numerical modeling of the deformation and fracture of a porous alumina ceramics at mesoscale
p. 99-108
Impact of the microstructure changes under cyclic groove pressing on the mechanical behavior of Mg-Mn-Ce magnesium alloy
p. 109-118
Mathematical modeling of the erosive burning of metallized solid propellants
p. 119-127
Functional dependence of the physical characteristics on irreversible parameters under electromechanical action on the ferroelectric ceramics
p. 128-141

Sommaire du Fascicule no. 59

On the standard form for matrices of order two
p. 5-10
On the module of continuity of mappings with an $s$-averaged characteristic
p. 11-15
Asymptotics of the solution of the singularly perturbed Cauchy problem in the case of a change in the stability, when the eigenvalues have poles
p. 16-28
Dynamics and destruction of volcanic bombs at underwater volcanic eruption
p. 29-36
Investigation of non-linear effects resulting from the interaction of tsunami like waves and underwater barriers
p. 37-52
On determination of gel point
p. 53-64
Experimental study of the influence of heat flux capacity on the ignition and charring characteristics of wood construction materials by using infrared diagnostics
p. 65-78
Peculiarities of the forest firefighting with the use of aircrafts
p. 79-86
Experimental and numerical study of the hydrodynamics and heat transfer in a bubbly flow downstream of the axisymmetric sudden expansion
p. 87-93
Calculation of the ignition stages and steady-state combustion of a metallized solid propellant under laser radiation
p. 94-104
Simulation modeling of the transport coefficients for rarefied gases and gas nanosuspensions
p. 105-117
An integrated approach to solving the problem of high-speed flow around a body in a pulsed aerodynamic facility, and validation of the obtained results
p. 118-129

Sommaire du Fascicule no. 60

On zeros of the combination of products of Bessel functions
p. 5-10
Solution of boundary problems for a two-dimensional elliptic operatordifferential equation in an abstract Hilbert space using the method of boundary integral equations
p. 11-31
Cyclically presented Sieradski groups with even number of generators and three dimensional manifolds
p. 32-41
Determining parameters of conformal mappings from the upper halfplane onto straight-line periodic polygons with double symmetry and onto circular periodic polygons
p. 42-60
Existence and uniqueness of solutions for nonlinear impulsive differential equations with nonlocal boundary conditions
p. 61-72
Numerical investigation of the reservoir filling with a Newtonian fluid using the VoF-method
p. 73-86
The features of the convective flows of multicomponent fluids in thin cavities
p. 87-106
Free oscillations of an ideal fluid in a rectangular vessel with a horizontal permeable membrane
p. 107-118
Numerical simulation of the liquid column collapse in the reservoirs of different shapes
p. 119-131
Efficiency of the screening capacity of sprayed water during a fire
p. 132-140
Simulation of dynamic channel-angular pressing of copper samples with allowance for experimental data of loading
p. 141-151

Sommaire du Fascicule no. 61

Commutative feebly invo-clean group rings
p. 5-10
Criterion for binary decomposability of an algebraic operation
p. 11-18
Regional gradient compensation with minimum energy
p. 19-31
The processes of complex loading structural steel for a five-link piecewise broken strain path
p. 32-44
The method of boundary states in the solution of the second fundamental problem of the theory of anisotropic elasticity with mass forces
p. 45-60
Research of the limiting state of ice cover under conditions of pure bending with reinforcement by reinforcing elements
p. 61-69
Physical modeling of the contact process interactions of the working body of the digging machine with frozen soil
p. 70-81
Modified formulation of the iterative algorithm for solving linear viscoelasticity problems based on separation of time and spice variables
p. 82-94
Numerical modeling of vibrations of viscoelastic pipelines conveying two-phase slug flow
p. 95-110
Simulation of the orthotropic plate response behavior during dynamic load
p. 111-118

Sommaire du Fascicule no. 62

Method for calculation of the stress-strain state for cable-membrane space reflector structures
p. 5-18
Involutions of the general linear group $GL_2$ over a subring of the field~$\mathbb{Q}$
p. 19-26
Left-invariant para-sasakian structures on Lie groups
p. 27-37
On the derivative of the double-layer logarithmic potential
p. 38-54
Dirichlet problem for the multudimensional Helmholtz equation with one singular coefficient
p. 55-67
Modeling of the dynamics of a liquid-droplet coolant under aerial firefighting
p. 68-78
Investigation of the stability of optimal aerodynamic designing of the three-dimensional wing-fuselage layout for a wide-body long-range aircraft with regard to its initial shape
p. 79-90
Strength assessment for water shut-off baffles in a fractured medium
p. 91-104
Distribution of the concentration of injected impurity under surface treatment by consecutive pulses
p. 105-118
Restrictions on stress components in the vertices of regular triangular and quadrangular pyramids embedded in elastic body
p. 119-134
Numerical study of the aerodynamic characteristics of a ``wing--fuselage--engine nacelle--pylon'' three-dimensional layout of the engine for a wide-body long-range aircraft
p. 135-141
To the 100th anniversary of Dmitriy Nikolayevich Garkunov
p. 142-143