Weak difference property of functions with the Baire property

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Weak difference property of functions with the Baire property

We prove that the class of functions with the Baire property has the weak difference property in category sense. That is, every function for which f(x+h)−f(x) has the Baire property for every h ∈ R can be written in the form f = g+H+φ where g has the Baire property, H is additive, and for every h ∈ R we have φ(x+h)−φ(x) 6= 0 only on a meager set. We also discuss the weak difference property of ...

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ژورنال

عنوان ژورنال: Fundamenta Mathematicae

سال: 2003

ISSN: 0016-2736,1730-6329

DOI: 10.4064/fm177-1-1