Identification of Boundary Conditions Using Natural Frequencies

Identification of Boundary Conditions Using Natural Frequencies in Case of a Ring Membrane

If they are limit periodic?

Imbedded Singular Continuous Spectrum for Schrödinger Operators

Improved asymptotics of the spectral gap for the Mathieu operator

Improved Berezin-Li-Yau inequalities with a remainder term

Improved Hardy-Sobolev inequalities

Indefinite Sturm-Liouville operators $ (\sgn x) (- \frac{d^2}{dx^2} +q(x))$ with finite-zone potentials

Indefinite Sturm-Liouville operators with periodic coefficients

Indefinite Sturm-Liouville operators with the singular critical point zero

Index theorems for quantum graphs

Inequalities between Dirichlet and Neumann eigenvalues on the Heisenberg group

Inequalities for the eigenvalues of non-selfadjoint Jacobi operators

Inequalities for the Steklov Eigenvalues

Infinite Hankel Block Matrices, Extremal Problems

Infinitesimal spectral flow and scattering matrix

Information decomposition of symbolic sequences

Initial Value Problems and Weyl--Titchmarsh Theory for Schrödinger Operators with Operator-Valued Potentials

Integral representations of closed operators as bi-Carleman operators with arbitrarily smooth kernels

Integral representations of unbounded operators by arbitrarily smooth Carleman kernels