The realization of positive definite matrices via planar networks and mixing-type sub-cluster algebr

• 作 者: Diana Ahmad YANG Yi-chao
• 机 构: DepartmentofMathematics,DepartmentofMathematics
• 出 处: 高校应用数学学报:英文版(B辑)
• 发表日期: 2020年2期
• 关键词: positive de nite matrix generalized Jacobi matrix planar network double wiring d
• 基金项目: Supported by the National Natural Science Foundation of China(11671350,11571173,11801043),Natural Science Foundation for Youths of Jiangsu Province(BK20181031).

As an improvement of the combinatorial realization of totally positive matrices via the essential positive weightings of certain planar network by S.Fomin and A.Zelevinsky[7],in this paper,we give a test method of positive definite matrices via the planar