"Analyzes algebras of concrete approximation methods detailing prerequisites, local principles, and lifting theorems. Covers fractality and Fredholmness. Explains the phenomena of the asymptotic splitting of the singular values, and more."
". . .theoretical. . .. . . .will be of value and interest to pure and applied mathematicians, especially for specialists and students."
"…a rich collection… …highly interesting…"
---Monatshefte fur Mathematik
The language of numerical analysis; regularization; approximation of spectra; stability analysis; representation theory; Fredholm sequences; self-adjoint approximation sequences.