Invariant subspaces of positive operators on riesz spaces and observations on cd0(K)-spaces

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Date

2005

Author

Çağlar, Mert

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The present work consists of two main parts. In the first part, invariant subspaces of positive operators or operator families on locally convex solid Riesz spaces are examined. The concept of a weakly-quasinilpotent operator on a locally convex solid Riesz space has been introduced and several results that are known for a single operator on Banach lattices have been generalized to families of positive or close-to-them operators on these spaces. In the second part, the so-called generalized Alexandroff duplicates are studied and CDsigma, gamma(K, E)-type spaces are investigated. It has then been shown that the space CDsigma, gamma(K, E) can be represented as the space of E-valued continuous functions on the generalized Alexandroff duplicate of K.

Subject Keywords

Functional analysis.

URI

http://etd.lib.metu.edu.tr/upload/12606391/index.pdf
https://hdl.handle.net/11511/15799

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Graduate School of Natural and Applied Sciences, Thesis