On the superstability of the Pexider type trigonometric functional equation (Q962538)

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scientific article; zbMATH DE number 5689955
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On the superstability of the Pexider type trigonometric functional equation
scientific article; zbMATH DE number 5689955

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    On the superstability of the Pexider type trigonometric functional equation (English)
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    7 April 2010
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    Pexider functional equation
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    superstability
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    (hyperbolic) trigonometric functional equation
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    sine function
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    cosine function
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    hyperbolic sine function
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    hyperbolic cosine function
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    exponential functions
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