2015 | OriginalPaper | Buchkapitel
Inner Product Spaces and Krein Spaces in the Quaternionic Setting
verfasst von : Daniel Alpay, Fabrizio Colombo, Irene Sabadini
Erschienen in: Recent Advances in Inverse Scattering, Schur Analysis and Stochastic Processes
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In this paper we provide a study of quaternionic inner product spaces. This includes ortho-complemented subspaces, fundamental decompositions as well as a number of results of topological nature. Our main purpose is to show that a closed uniformly positive subspace in a quaternionic Krein space is ortho-complemented, and this leads to our choice of the results presented in the paper.