A Cantor regular set which does not have Markov's property
A counterexample to the strong real Jocobian conjecture.
A functioanl identity characterizing polynomials.
A generalization of the Gauss-Lucas theorem
Given a set of points in the complex plane, an incomplete polynomial is defined as the one which has these points as zeros except one of them. The classical result known as Gauss-Lucas theorem on the location of zeros of polynomials and their derivatives is extended to convex linear combinations of incomplete polynomials. An integral representation of convex linear combinations of incomplete polynomials is also given.
A Remark on the Multidimensional Moment Problem.
Abschätzung der Teilsummen reeller Polynome.
An extremal problem related to probability.
Asymptotic behavior for the best lower bound of Jensen's functional
Berichtigung zur Arbeit "Über die Charakterisierung der Funktion f(x) = x durch Funktionalgleichungen, II", Band 30 (1986), 142-150.
Bernstein's inequality on algebraic curves
Bilinear representation formulas for polynominals.
Canonical decompositions of certain generalized Brownian bridges.
Choosing roots of polynomials with symmetries smoothly.
Comparison of L¹- and -norms of squares of polynomials
Ein Lemma über Polynome und seine Anwendungen
Eine Bemerkung zu Verallgemeinerungen der Ungleichung vom arithmetischen und geometrischen Mittel.
Eine Verallgemeinerung der Ungleichung vom arithmetischen und geometrischen Mittel.
Eventual positivity for analytic functions.
Finding new families of rank-one convex polynomials
Generalized Pólya condition for Birkhoff interpolation with lacunary polynomials.