arXiv
Open Access
2011
Locally definite normal operators in Krein spaces
Friedrich Philipp
Abstrak
We introduce the spectral points of two-sided positive type of bounded normal operators in Krein spaces. It is shown that a normal operator has a local spectral function on sets which are of two-sided positive type. In addition, we prove that the Riesz-Dunford spectral subspace corresponding to a spectral set which is only of positive type is uniformly positive. The restriction of the operator to this subspace is then normal in a Hilbert space.
Topik & Kata Kunci
Penulis (1)
F
Friedrich Philipp
Akses Cepat
Informasi Jurnal
- Tahun Terbit
- 2011
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- en
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- arXiv
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- Open Access ✓