Open AccessApproximation of the block numerical range of block operator matrices
Author(s) -
Jiahui Yu,
Alatancang Chen,
Junjie Huang,
Jiaojiao Wu
Publication year - 2019
Publication title -
filomat
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.449
H-Index - 34
eISSN - 2406-0933
pISSN - 0354-5180
DOI - 10.2298/fil1912877y
Subject(s) - mathematics , block (permutation group theory) , operator matrix , numerical range , operator (biology) , range (aeronautics) , arithmetic , combinatorics , mathematical analysis , biochemistry , chemistry , materials science , repressor , transcription factor , composite material , gene
In this paper we obtain an approximation of the block numerical range of bounded and unbounded block operator matrices by projection methods.
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