Vol. 33, No. 1, 2026
On an Extremal Gheit Function and Its Applications
p. 1 abstract
Approximative Properties of Multivariate Exponential Sums
p. 12 abstract
Convexity and Concavity of \(\boldsymbol f\)-Potentials (Kolmogorov Means)
p. 24 abstract
Asymptotics of the Transfer Function of the Poincar\(\acute{\text{e}}\)–Steklov Operator for a Functionally Graded Elastic Layer
p. 34 abstract
On Operator Fields in an Upper Triangular Toeplitz Form
p. 42 abstract
Remarks on the Determination of the Lorentzian Metric by the Lengths of Geodesics or Null-Geodesics
p. 56 abstract
Is Born-Jordan Really the Universal Path Integral Quantization Rule?
p. 65 abstract
Brinkman’s Filtration Law and the Stability of the Water-Over-Vapor Systems in Geothermal Reservoirs
p. 79 abstract
New Numerical Invariants of an Unfolding of a Polycycle “Tears of the Heart”
p. 89 abstract
On Dissipation Operators of Quantum Optics
p. 107 abstract
Three Identical One-Dimensional Quantum Particles with Point Interaction as a Solvable Model: II. Negative Essential Spectrum
p. 110 abstract
Inverse Semigroup of Metrics on a Double is Fundamental
p. 126 abstract
A Formula of Atiyah–Bott–Lefschetz Type and Its Application to Operators with a Finite Group of Shifts
p. 129 abstract
On a Measure-Theoretic Description of Logarithmic Hamiltonians for Volterra-Type Lattices
p. 138 abstract
Singularities of Landau–Ginzburg Models for Complete Intersections and Derived Categories
p. 155 abstract
Semiclassical Asymptotics of the Solution to the Cauchy Problem for the Three-Dimensional Schrödinger Equation with a Point Potential
p. 163 abstract
Continuously Representable Topological Groups with Indecomposable Representations of Bounded Degree
p. 180 abstract
Integrable Perturbations of Polynomial Hamiltonian Systems
p. 183 abstract
Quantization of Branched Coverings Revisited
p. 189 abstract