On parallelogram areas in normed linear spaces
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Publication:866797
DOI10.1007/s00010-005-2814-6zbMath1112.39018OpenAlexW2160756337MaRDI QIDQ866797
Claudi Alsina, Maria Santos Tomás
Publication date: 14 February 2007
Published in: Aequationes Mathematicae (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1007/s00010-005-2814-6
Characterizations of Hilbert spaces (46C15) Functional equations for functions with more general domains and/or ranges (39B52)
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