TY - GEN AU - Prestel, A., AU - Delzell, Charles N., TI - Positive polynomials: from Hilbert's 17th problem to real algebra T2 - Springer monographs in mathematics, SN - 3540412158 AV - QA161.P59 P74 2001 PY - 2001/// CY - Berlin, New York PB - Springer KW - Polynomials KW - Topological fields KW - Semialgebraic sets N1 - Includes bibliographical references (p. [247]-254) and index ER -