Cover

Title page

Copyright page

Contents

On the solvability and stability of the Dirichlet problem

On the stability of solutions of differential-operator equations with time lag under perturbations bounded in the mean

On Sommerfeld-type conditions for a certain class of partial differential equations

Structure of the set of solutions of an equation of parabolic type

A variational problem

On the factorization of operators in Hilbert space

A global existence theorem for a nonlinear system and the defect index of a linear operator

On the existence of eigenvectors for positive noncompletely continuous linear operators

Proof of Mahler’s conjecture on the measure of the set of 𝑆-numbers

On a generalization of the concept of spectral measure

On measures invariant under a group of transformations

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