Vol. 66, No. 6, 2025

Siberian Mathematical Journal

Criterion for the Positive Definiteness of a Quadratic Functional and Its Application

E.R.Avakov and G.G.Magaril-Il’yaev p. 1343 abstract

Injectivity Radius of the Prolate Ellipsoid of Revolution

V.N.Berestovskii and A.Mustafa p. 1355 abstract

Description of Edges Incident to \( 3 \)-Faces in \( 3 \)-Polytopes without Adjacent \( 3 \)-Faces

O.V.Borodin and A.O.Ivanova p. 1368 abstract

The Right-Angled Coxeter Group of Minimal Covolume in Three-Dimensional Hyperbolic Space

A.Yu.Vesnin and A.A.Egorov p. 1374 abstract

Two Examples of Quasidense Vector Subspaces of \( {𝕉}^{𝕅} \)

A.E.Gutman and I.A.Emelianenkov p. 1390 abstract

On a Class of Pseudohyperbolic Operators with Variable Coefficients

G.V.Demidenko and X.Ma p. 1395 abstract

The Schwarzian Derivative and Critical Values of a Polynomial with Real Critical Points

V.N.Dubinin p. 1405 abstract

Discrete Parabolic Functions and Taylor Series

X.Lu, O.A.Danilov, and A.D.Mednykh p. 1409 abstract

Metric Properties of Mappings Defining Lipschitz Graphs on Two-Step Carnot Groups

M.B.Karmanova p. 1422 abstract

Plurality of Asymptotic Series of Eigenvalues for the Third Boundary Value Problem with a Large Negative Robin Coefficient

S.A.Nazarov p. 1434 abstract

Sobolev-Type Mappings Between Metric Measure Spaces. Composition Operators

A.S.Romanov p. 1456 abstract

An Inverse Problem for Electrodynamic Equations with Memory

V.G.Romanov p. 1471 abstract

On a Logarithmic Weighted Problem on the Whole Euclidean Space \( 𝕉^{4} \) Involving Exponential Growth Nonlinearity

S.Baraket, B.Dridi, R.Jaidane, and W.Mtaouaa p. 1478 abstract

\( \mathrm{d} \)-Operators in Banach Lattices

E.Yu.Emelyanov, N.Erkurşun-Özcan, and S.G.Gorokhova p. 1499 abstract

Littlewood–Paley \( g \)-Function Associated with the Polyaxial Operator

M.Haddad and M.Mastouri p. 1509 abstract