Abstract
Let \({\mathscr {L}}(X)\) be the algebra of all bounded linear operators on a complex Banach space X. Complete descriptions are given of the nonlinear maps of \({\mathscr {L}}(X)\) preserving local invertibility of \(T*S\) for different kinds of binary operations \(*\) on operators such as the sum \(T+S\), the difference \(T-S\), and the product TS. Extensions of these results to the case of different Banach spaces are also established. As application, mappings from \({\mathscr {L}}(X)\) onto itself that preserve the inner local spectral radius zero of such binary operations on operators are described.
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Acknowledgements
The first author thank the hospitality of the organizers of MatTriad’2015, Coimbra, Portugal, September 6–11, 2015, where the main results of this chapter were announced. This work was partially supported by a grant from MIU-SRA, Morocco.
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Bendaoud, M., Jabbar, M., Sarih, M. (2017). Nonlinear Local Invertibility Preservers. In: Bebiano, N. (eds) Applied and Computational Matrix Analysis. MAT-TRIAD 2015. Springer Proceedings in Mathematics & Statistics, vol 192. Springer, Cham. https://doi.org/10.1007/978-3-319-49984-0_9
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