Invariant subspaces for Banach space operators with an annular spectral set

Date

2008-01-01

Author

Yavuz, Onur

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Consider an annulus Omega = {z epsilon C : r(0) 0 such that parallel to p(T)parallel to <= K sup{vertical bar p(lambda)vertical bar : vertical bar lambda vertical bar <= 1} and parallel to p(r(0)T(-1))parallel to <= K sup{vertical bar p(lambda)vertical bar : vertical bar lambda vertical bar <= 1} for all polynomials p. Then there exists a nontrivial common invariant subspace for T* and T*(-1).

Subject Keywords

Mathematics

URI

https://hdl.handle.net/11511/63674

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Department of City and Regional Planning, Book / Book chapter