An Inequality in Linear Algebra (Petter E. Bjørstad). - Boris Mityagin (SIAM Rev., 1991)

Estimates for Periodic and Dirichlet Eigenvalues of the Schrödinger Operator. - Thomas Kappeler; Boris Mityagin (SIAM J. Math. Anal., 2001)

Spectral gaps of the periodic Schrödinger operator when its potential is an entire function. - Plamen Djakov; Boris Mityagin (Adv. Appl. Math., 2003)

Simple and double eigenvalues of the Hill operator with a two-term potential. - Plamen Djakov; Boris Mityagin (J. Approx. Theory, 2005)

Trace formula and Spectral Riemann Surfaces for a class of tri-diagonal matrices. - Plamen Djakov; Boris Mityagin (J. Approx. Theory, 2006)

Equiconvergence of spectral decompositions of 1D Dirac operators with regular boundary conditions. - Plamen Djakov; Boris Mityagin (J. Approx. Theory, 2012)

Shifts of a measurable function and criterion of p-integrability. - Boris Mityagin (J. Approx. Theory, 2017)