spectral set

English

Noun

spectral set (plural spectral sets)

(mathematics) In operator theory, a set $X\subseteq \mathbb {C}$ such that, for a (possibly unbounded) linear operator $T$ on a Banach space, the spectrum of $T$ is in $X$ and von Neumann's inequality holds for $T$ on $X$ .

This article is issued from Wiktionary. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.