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Sur une question concernant les fonctions de deux variables réelles. - MaRDI portal

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Sur une question concernant les fonctions de deux variables réelles. (Q1477085)

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scientific article; zbMATH DE number 2621726
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English
Sur une question concernant les fonctions de deux variables réelles.
scientific article; zbMATH DE number 2621726

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    Sur une question concernant les fonctions de deux variables réelles. (English)
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    1913
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    Ist \(V(x, y)= 0\), für \(x = 0\), \(y = 0\), so handelt es sich darum, \(V\) durch ein Polynom \(U(x, y)\) zu ersetzen, das für alle oder fast alle \(x\), \(y\) einer gewissen Umgebung des Nullpunktes das nämliche Vorzeichen wie \(V(x, y)\) besitzt.
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