Titlebook: Inner Product Structures; Theory and Applicati Vasile Ion Istrăţescu Book 1987 D. Reidel Publishing Company, Dordrecht, Holland 1987 Banach

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Quaternionic Complete Inner Product Spaces,ons is attributed to the great Irish mathematician R. Hamilton*. In recent years the interest in spaces over the quaternions has increased due in part to their possible application in quantum mechanics. We shall present some facts concerning linear spaces over . and linear operators on such spaces (

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A Collection of Problems,nd our purpose is to direct the attention of interested readers to problems that are mentioned by different authors. We give references to where the problem is first stated as well as references to where the latest results (to the best knowledge of the present author) can be found.

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