The numerical ranges of unbounded linear operators
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Publication:4776432
DOI10.1017/S0004972700023601zbMath0288.47001OpenAlexW2167027506MaRDI QIDQ4776432
Béla Bollobás, Stephen E. Eldridge
Publication date: 1975
Published in: Bulletin of the Australian Mathematical Society (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1017/s0004972700023601
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