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- W2981472172 abstract "Let $fcolonmathbb{R}^2tomathbb{R}$. The notions of feebly continuity and very feebly continuity of $f$ at a point $langle x,yrangleinmathbb{R}^2$ were considered by I. Leader in 2009. We study properties of the sets $FC(f)$ (respectively, $VFC(f)supset FC(f)$) of points at which $f$ is feebly continuous (very feebly continuous). We prove that $VFC(f)$ is densely nonmeager, and, if $f$ has the Baire property (is measurable), then $FC(f)$ is residual (has full outer Lebesgue measure). We describe several examples of functions $f$ for which $FC(f)neq VFC(f)$. Then we consider the notion of two-feebly continuity which is strictly weaker than very feebly continuity. We prove that the set of points where (an arbitrary) $f$ is two-feebly continuous forms a residual set of full outer measure. Finally, we study the existence of large algebraic structures inside or outside various sets of feebly continuous functions." @default.
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- W2981472172 date "2019-10-26" @default.
- W2981472172 modified "2023-09-27" @default.
- W2981472172 title "Families of feebly continuous functions and their properties" @default.
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