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Systems of trigonometric functional equations in Banach algebras

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Summary.

We solve two systems of trigonometric functional equations for mappings defined on a group or a semi-group and taking values in a complex Banach algebra.

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Authors and Affiliations

  1. Institute of Mathematics, Silesian University, Bankowa 14, PL-40-007, Katowice, Poland

    Żywilla Fechner

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  1. Żywilla Fechner
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Correspondence to Żywilla Fechner.

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Manuscript received: October 26, 2007 and, in final form, April 22, 2008.

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Fechner, Ż. Systems of trigonometric functional equations in Banach algebras. Aequ. math. 77, 187–195 (2009). https://doi.org/10.1007/s00010-008-2946-6

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  • DOI: https://doi.org/10.1007/s00010-008-2946-6

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