<p>The aim of this work is to provide a complete answer to the question of whether two functions can be separated by an additive mapping, knowing that these functions satisfy a system of two inequalities describing the relationships between the value on the sum of two arguments and the sum of the values on these arguments.</p>

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When two functions can be separated by an additive one - Kranz assumptions type conditions

  • Roman Badora

摘要

The aim of this work is to provide a complete answer to the question of whether two functions can be separated by an additive mapping, knowing that these functions satisfy a system of two inequalities describing the relationships between the value on the sum of two arguments and the sum of the values on these arguments.