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math.CO2023
Total positivity from a kind of lattice paths
Yu-Jie Cui, Bao-Xuan Zhu
Total positivity of matrices is deeply studied and plays an important role in various branches of mathematics. The main purpose of this paper is to study total positivity of a matr…
math.OC2023
A parameterized solution to the simultaneous stabilization problem
Yufang Cui, Anders Lindquist
In a series of fundamental papers BK Ghosh reduced the simultaneous stabilization problem to a NevanlinnaPick interpolation problem. In this paper we generalize some of these resul…