Vol. 118, No. 1-2, 2025
Rate of Convergence of Fourier Sums of Continuous Functions with Fractal Graphs
p. 3 abstract
The Polar Decomposition Theorem for Closed Multivalued Operators
p. 18 abstract
Davenport Constant for Finite Abelian Groups with Higher Rank
p. 23 abstract
Generalized Absolute Convergence of Fourier–Jacobi Series
p. 35 abstract
Stability of the Maximal Term of a Dirichlet Series of a Given Growth on a Discrete Set
p. 48 abstract
On a Class of Completely Positive Mappings
p. 60 abstract
On \(\beta\)-Absolute Convergence of Fourier Series with Small Gaps
p. 75 abstract
The Minimum Number of Cliques in Induced Subgraphs of Johnson Graphs
p. 80 abstract
On Hereditarily Undecidable Fragments of Basic Elementary Theories
p. 95 abstract
On the Analytical Representation of Two Classes of Homogeneous Polynomials
p. 108 abstract
Theoretical Analysis of Weighted \(\ell_{1}\) and \(\ell_{1-2}\)-Minimization with Multiple Weighting Sets
p. 119 abstract
Construction of Solutions to Analogs of Nonstationary Schrödinger Equations Corresponding to a Pair of Isomonodromic Hamiltonian Systems \(H^{5/2+3/2}\) and \(H^{5/2+2}\) of the Hierarchy of Degenerations of the Garnier System
p. 138 abstract
Ideal of the Variety of Flexes of Plane Cubics
p. 151 abstract
On Two-Distance \((0,1)\)-Counterexamples to Borsuk’s Conjecture in \(l_p\) Metrics
p. 158 abstract
Recurrence of Integral Zeros for Ergodic Flows
p. 165 abstract
A New \(q\)-Congruence on Double Sums
p. 173 abstract
On New Orthogonally Generalized Additive-Quadratic Functional Equations in the Sense of Rätz and Their Stability
p. 180 abstract
On the Compactness of Integral Operators with Homogeneous Kernels and Variable Coefficients on the Heisenberg Group
p. 193 abstract
Integral Moduli of Continuity of Sums of Cosine Series with Monotonicity Order of Coefficients between 1 and 2
p. 199 abstract
Lipschitz Graphs on Heisenberg groups and Related Problems
p. 205 abstract
Blow-up of Solutions of the Cauchy Problem for the Doubly Nonlinear Equation of a Thermoelectric Model
p. 215 abstract
On Existence of Periodic Points in a System of Intervals
p. 222 abstract
Subgroup Embeddings in a Finite Group: between Subnormality and \(\mathrm{K}\)-\(\mathbb{P}\)-Subnormality
p. 233 abstract
Commutative Multiplicatively Idempotent Semirings with the Identity \(x+2xy=x\)
p. 246 abstract
Asymptotic Properties of Mean Periodic Functions with Respect to the Bessel Convolution
p. 259 abstract
Criteria for Periodic Wavelet Frames
p. 272 abstract
On Composite Numbers with \((n+1)\mid \sigma(n)\)
p. 289 abstract
Simulation of Delay Using a System of Ordinary Differential Equations
p. 294 abstract
Eigenvalue Distribution in Gaps of the Essential Spectrum of the Bochner–Schrödinger Operator
p. 309 abstract
Periodic Contrast Structures in the Reaction–Diffusion–Advection Equation with a KPZ Nonlinearity
p. 321 abstract
A Constructive Predicate Calculus
p. 338 abstract
Asymptotics of the Spectra of the Dirichlet and Dirichlet–Neumann Problems for the Sturm–Liouville Equation with an Integral Perturbation
p. 356 abstract
Adiabatic Evolution Generated by a Schrödinger Operator with a Continuous Spectrum
p. 375 abstract
The \(A_{\alpha}\)-Spectral Radius and Spanning Trees of Graphs
p. 391 abstract
Qualitative Properties of the Obstacle Problem Solution for the Stieltjes String
p. 404 abstract
The Jackson–Stechkin Inequality in the Space \(C\) with Nonclassic Modulus of Continuity
p. 409 abstract
Sectoriality and Compactness of the Resolvent of a Nonself-Adjoint Sturm–Liouville Operator with a Singular Distribution Potential
p. 415 abstract
On Nonsingular Structural Stable Chaotic 3-Flows of Attractor-Repeller Type
p. 421 abstract