Sentence examples for essential spectrum from inspiring English sources

In this section, we investigate the Wolf essential spectrum of.

We use for the spectrum of for Wolf essential spectrum, for Schechter essential spectrum, and for approximate point spectrum.

Hence, the essential spectrum of the operator (mathcal{J}) equals the essential spectrum of the operator N̂ (see [25], p. 136).

By [6] the essential spectrum of the minimal operator generated by T is [ 0, ∞ ) and this is the same as the essential spectrum of T, see [10].

For analytic operator functions, we prove accumulation of branches of complex eigenvalues to the essential spectrum.

In addition properties of the essential spectrum of norm bounded disjointness preserving operators are proved.

Operators on unbounded domains may acquire eigenvalues that are embedded in the essential spectrum.

We investigate tensor products of Hilbert complexes, in particular the (essential) spectrum of their Laplacians.

We are interested in the essential spectrum and the discrete spectrum.

The infimum of the spectrum of H is in the edge of its essential spectrum.

We notice that they accumulate at λ = − 1 which is the essential spectrum.