Vol. 66, No. 9, 2022

Russian Mathematics

The Associated Operator Legendre Function and the Incomplete Cauchy Problem

A. V. Glushak p. 1 abstract

A Boundary Value Problem with a Conormal Derivative for a Mixed-Type Equation of the Second Kind with a Conjugation Condition of the Frankl Type

B. I. Islomov and A. A. Abdullayev p. 11 abstract

On Criteria for Asymptotic Stability

B. S. Kalitine p. 26 abstract

(Anti-)Self-Dual Einsteinian Metrics of Zero Signature, Their Petrov Classes and Connection with Kähler and Para-Kähler Structures

L. N. Krivonosov and V. A. Luk’yanov p. 33 abstract

Metric Properties of the Rayleigh–Ritz Operator

A. V. Lakeev, Yu. È. Linke and V. A. Rusanov p. 46 abstract

The Koolen–Park Boundary and Distance-Regular Graphs without m-Claws

A. A. Makhnev, Wenbin Guo and K. S. Efimov p. 54 abstract

A Problem with Displacement on Internal Characteristics in an Unbounded Domain for the Gellerstedt Equation with a Singular Coefficient

U. M. Mirsaburova p. 58 abstract

Dirichlet Problems for Mixed-Type Equations with Fractional Derivatives

K. B. Sabitov p. 71 abstract