Institute for Bioinformatics and Translational Research, UMIT - The Health and Lifesciences University Hall/Tyrol, Hall in Tyrol, Austria.
PLoS One. 2012;7(3):e28328. doi: 10.1371/journal.pone.0028328. Epub 2012 Mar 16.
The geometry of polynomials explores geometrical relationships between the zeros and the coefficients of a polynomial. A classical problem in this theory is to locate the zeros of a given polynomial by determining disks in the complex plane in which all its zeros are situated. In this paper, we infer bounds for general polynomials and apply classical and new results to graph polynomials namely Wiener and distance polynomials whose zeros have not been yet investigated. Also, we examine the quality of such bounds by considering four graph classes and interpret the results.
多项式的几何研究了多项式的零点和系数之间的几何关系。该理论中的一个经典问题是通过确定复平面中的圆盘来确定给定多项式的零点,使得该多项式的所有零点都位于该圆盘内。在本文中,我们推导出了一般多项式的界,并将经典和新的结果应用于图多项式,即 Wiener 多项式和距离多项式,它们的零点尚未被研究过。此外,我们通过考虑四个图类来检查这些界的质量,并解释结果。