A functional equation with biadditive functions

DOI10.2478/amsil-2022-0008zbMath1501.39012OpenAlexW4225262643MaRDI QIDQ2081356

Radosław ~Łukasik

Publication date: 12 October 2022

Published in: Annales Mathematicae Silesianae (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2478/amsil-2022-0008

zbMATH Keywords

isometryadjoint operatororthogonality equationbiadditive function

Mathematics Subject Classification ID

Functional equations for functions with more general domains and/or ranges (39B52) Mappings of semigroups (20M15) Automorphisms, homomorphisms, endomorphisms, etc. for abelian groups (20K30) Direct sums, direct products, etc. for abelian groups (20K25)

Cites Work

• Unnamed Item
• Orthogonality equation with two unknown functions
• Decomposition of two functions in the orthogonality equation
• A note on the orthogonality equation with two functions
• On an orthogonality equation in normed spaces
• Functions preserving the biadditivity
• Decomposition of functions between Banach spaces in the orthogonality equation
• Some orthogonality equation with two functions

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