The author develops the limit relations between the errors of polynomial approximation in weighted metrics and apply them to various problems in approximation t

The author develops the limit relations between the errors of polynomial approximation in weighted metrics and apply them to various problems in approximation t

The authors construct an abstract pseudodifferential calculus with operator-valued symbol, suitable for the treatment of Coulomb-type interactions, and they app

The authors consider the inverse problem of determining a rigid inclusion inside an isotropic elastic body $\Omega$, from a single measurement of traction and d

This paper concerns unitary invariants for $n$-tuples $T:=(T_1,\ldots, T_n)$ of (not necessarily commuting) bounded linear operators on Hilbert spaces. The auth