A generalization of the cosine addition law on semigroups

DOI10.1007/S00010-023-00946-1zbMath1516.39015arXiv2210.08133OpenAlexW4323542955MaRDI QIDQ6098931

Unnamed Author, Elhoucien Elqorachi

Publication date: 19 June 2023

Published in: Aequationes Mathematicae (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/2210.08133

zbMATH Keywords

semigroupmultiplicative functioninvolutive automorphismcosine addition law

Mathematics Subject Classification ID

Functional equations for functions with more general domains and/or ranges (39B52) Functional equations for complex functions (39B32)

Related Items (1)

Cosine subtraction laws

Cites Work

• Unnamed Item
• The cosine addition law with an additional term
• A generalization of the cosine-sine functional equation on groups
• On the trigonometric subtraction and addition formulas
• The sine addition and subtraction formulas on semigroups
• Around the sine addition law and d'Alembert's equation on semigroups
• The cosine and sine addition and subtraction formulas on semigroups
• A variant of d'Alembert's functional equation
• Functional Equations on Groups

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