scientific article; zbMATH DE number 589353
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Publication:4295692
zbMath0828.12001MaRDI QIDQ4295692
Publication date: 7 January 1996
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
basic semialgebraic setpolynomial functionsreal analytic functionsgerms of real analytic functionspiecewise-polynomial functionsbasic closed seminanalytic settransversal zeros theorem
Sums of squares and representations by other particular quadratic forms (11E25) Real-analytic and semi-analytic sets (14P15) Fields related with sums of squares (formally real fields, Pythagorean fields, etc.) (12D15)
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Impossibility of \(C^{\infty}\) variation or formal power series variation in solutions to Hilbert's 17th problem ⋮ Continuity properties for flat families of polynomials. I: Continuous parametrizations
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