Geodesic

Sommaire du Fascicule no. 1

On invertibility states of differential and difference operators
p. 1-13
Inverse coefficient problems for a~non-linear convection--diffusion--reaction equation
p. 14-30
Morera-type theorems in the hyperbolic disc
p. 31-60
Non-uniformizable sets of second projective level with countable cross-sections in the form of Vitali classes
p. 61-90
On intersections of two real quadrics
p. 91-139
Solubility of unsteady equations of multi-component viscous compressible fluids
p. 140-185
Certain approximation problems for functions on the infinite-dimensional torus: Lipschitz spaces
p. 186-211
Sobolev-orthogonal systems of functions associated with an orthogonal system
p. 212-244

Sommaire du Fascicule no. 2

$(q_1,q_2)$-quasimetric spaces. Covering mappings and coincidence points
p. 245-272
On the factorization of matrix and operator Wiener--Hopf integral equations
p. 273-282
Blow-up of solutions of a~full non-linear equation of ion-sound waves
p. 283-317
The first boundary-value problem for an equation of mixed type with a~singular coefficient
p. 318-350
On the basis property of the system of eigenfunctions and associated functions
p. 351-376
Integrals of Bessel processes and multi-dimensional Ornstein--Uhlenbeck processes:
p. 377-406
On the solubility of certain classes of non-linear integral equations
p. 407-427
Multi-normed spaces based on non-discrete measures and their tensor products
p. 428-449

Sommaire du Fascicule no. 3

Basis properties of affine Walsh systems in symmetric spaces
p. 451-476
Minimal hypersurfaces in $\mathbb{S}^5$ with vanishing Gauss--Kronecker curvature
p. 477-493
Representation of solutions of evolution equations on a~ramified surface by Feynman formulae
p. 494-511
Ultrasoluble coverings of some nilpotent groups by a~cyclic group
p. 512-531
Local and global universal norms in the cyclotomic $\mathbb Z_\ell$-extension
p. 532-548
Approximating $\ln 2$ by numbers in the field $\mathbb{Q}(\sqrt{2}\,)$
p. 549-577
Simple finite-dimensional right-alternative unital superalgebras
p. 578-595
Topology of singularities of a~stable real caustic germ of type $E_6$
p. 596-611
Special Bohr--Sommerfeld Lagrangian submanifolds of algebraic varieties
p. 612-631
Subcoordinate representation of $p$-adic functions and generalization of Hensel's lemma
p. 632-645

Sommaire du Fascicule no. 4

Kloosterman sums with multiplicative coefficients
p. 647-661
On a~classical correspondence of real K3 surfaces
p. 662-693
On linear sections of the spinor tenfold.~I
p. 694-751
Classification of Picard lattices of K3 surfaces
p. 752-816
Arithmetic surfaces and adelic quotient groups
p. 817-836
Continuous selections for metric projection operators and for their generalizations
p. 837-859

Sommaire du Fascicule no. 5

Diagonal complexes
p. 861-879
Relative Milnor $K$-groups and differential forms of split nilpotent extensions
p. 880-913
On an instantaneous blow-up of solutions of evolutionary problems on the half-line
p. 914-930
Extension of functions in non-isotropic Nikolskii--Besov spaces and
p. 931-983
Existence of a~solution in the form of a~moving front of a~reaction-diffusion-advection problem
p. 984-1005
On the classification of varieties generated by wreath products of groups
p. 1006-1018
On the global solubility of the Cauchy problem for hyperbolic Monge--Amp\'ere systems
p. 1019-1075
Letter to the editors

Sommaire du Fascicule no. 6

A new approach to the question of existence of periodic solutions
p. 1077-1107
On the asymptotic behaviour of eigenvalues of a~boundary-value problem
p. 1108-1135
Approximation of the gradient of a~function on the basis of a~special
p. 1136-1147
Breakdown of cycles and the possibility of opening spectral gaps
p. 1148-1195
On the Frankl--R\"odl theorem
p. 1196-1224
Boundedness of Toeplitz operators related to singular integral operators
p. 1225-1238
On Wirtinger derivations, the adjoint of the operator~$\overline\partial$, and applications
p. 1239-1264
Trigonometric factorizations of the Horadam sequence and its companion sequence
p. 1265-1277