2 papers
math.FA2017
More on the Density of Analytic Polynomials in Abstract Hardy Spaces
Alexei Karlovich, Eugene Shargorodsky
Let be the sequence of the Fejér kernels on the unit circle . The first author recently proved that if is a separable Banach function space on $\mathbb{T}…
math.SP2012
On the limit behaviour of second order relative spectra of self-adjoint operators
Eugene Shargorodsky
It is well known that the standard projection methods allow one to recover the whole spectrum of a bounded self-adjoint operator but they often lead to spectral pollution, i.e. to…