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两个多项式的根的相对分布的显式判定
The Relative Distribution of the Roots of Two Polynomials
【摘要】 研究两个多项式的根的相对分布的显式判定问题,得出两个三次多项式的根的相对分布以及二次和四次多项式的根的相对分布的显式判定.
【Abstract】 The relative distribution of the roots of two polynomials with symbolic coefficients is studied.We obtain the relative distribution of roots of two polynomials whose degrees are respectively 2 and 4,and we answer the same problem about the two polynomials of degree 3.
【关键词】 根的相对分布;
判别式序列;
符号计算;
Budan-Fourier定理;
【Key words】 relative distribution of roots; discrimination sequence; symbolic computation; Budan-Fourier theorem;
【Key words】 relative distribution of roots; discrimination sequence; symbolic computation; Budan-Fourier theorem;
【基金】 国家自然科学基金资助项目(60273095;10571095)
- 【文献出处】 淮阴师范学院学报(自然科学版) ,Journal of Huaiyin Teachers College(Natural Science Edition) , 编辑部邮箱 ,2009年01期
- 【分类号】O174.14
- 【下载频次】55