Invariance of the Essential Spectra of Operator Pencils
Invariance of the Essential Spectra of Operator Pencils
复制标题
操作员铅笔本质光谱的不变性
DOI:
10.1007/978-3-030-43380-2_10
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
C. Trunk
中科院分区:
文献类型:
--
作者:
H. Gernandt;N. Moalla;F. Philipp;W. Selmi;C. Trunk
The essential spectrum of operator pencils with bounded coefficients in a Hilbert space is studied. Sufficient conditions in terms of the operator coefficients of two pencils are derived which guarantee the same essential spectrum. This is done by exploiting a strong relation between an operator pencil and a specific linear subspace (linear relation).
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