A new proof of the evaluation formula of the nodal determinant in terms of directed trees
A new proof of the evaluation formula of the nodal determinant in terms of directed trees
复制标题
有向树节点行列式评价公式的新证明
DOI：
10.1002/cta.4490100309
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发表时间：
1982
影响因子：
2.3
通讯作者：
S. Shinoda
中科院分区：
文献类型：
--
作者：
Y. Kajitani;Wai;S. Shinoda
在最近的一篇文章中，有一个脚注，它是基于Fuller的结果以及Jur和Man~our的结果，它给出了具有实系数的四次多项式P(X)存在实零点的明确的充要条件。
In a recent paper'there is a footnote which is based on results by Fuller'and by Jury and Man~ our,~ and which provides explicit necessary and sufficient conditions for the existence of real zeros of a quartic polynomial P (x) with real coefficients.