Displaying similar documents to “Some remarks about algebraic independence measures in high dimension”

On the polynomial-like behaviour of certain algebraic functions

Charles Feffermann, Raghavan Narasimhan (1994)

Annales de l'institut Fourier

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Given integers D > 0 , n > 1 , 0 < r < n and a constant C > 0 , consider the space of r -tuples P = ( P 1 ... P r ) of real polynomials in n variables of degree D , whose coefficients are C in absolute value, and satisfying det P i x i ( 0 ) 1 i , j r = 1 . We study the family { f | V } of algebraic functions, where f is a polynomial, and V = { | x | δ , P ( x ) = 0 } , δ > 0 being a constant depending only on n , D , C . The main result is a quantitative extension theorem for these functions which is uniform in P . This is used to prove Bernstein-type inequalities which are again uniform with respect to P . ...