M. Birman

Spectral Theory of Self-Adjoint Operators in Hilbert Space

M. Solomjak, M. Birman, M. S. Birman, 1987 .

PIECEWISE-POLYNOMIAL APPROXIMATIONS OF FUNCTIONS OF THE CLASSES $ W_{p}^{\alpha}$

M. Birman, M. Solomjak, M. Birman, 1967 .

Spectral theory of selfadjoint operators in Hilbert space

M. Solomjak, M. Birman, M. Birman, 1987 .

Quantitative analysis in Sobolev imbedding theorems and applications to spectral theory

M. Solomjak, M. Birman, M. Birman, 1980 .