论文标题
线性复发定义的某些矩阵的系数总阳性
Coefficientwise total positivity of some matrices defined by linear recurrences
论文作者
论文摘要
我们在六个不确定的情况下表现出多项式$ t(a,c,d,e,f,g)$的低三角形基质,从经验上讲似乎是完全阳性的,其中包括特殊情况,其中包括欧拉三角形。我们证明了$ t(a,c,0,e,0,0)$的系数总阳性,其中包括反向的stirling子集三角形。
We exhibit a lower-triangular matrix of polynomials $T(a,c,d,e,f,g)$ in six indeterminates that appears empirically to be coefficientwise totally positive, and which includes as a special case the Eulerian triangle. We prove the coefficientwise total positivity of $T(a,c,0,e,0,0)$, which includes the reversed Stirling subset triangle.