Xiaomei Chen

most citedNote on eigenvectors from eigenvalues

1 citations · 1 across the 4 of their papers we have counts for

collaborators

4 papers

math.CO2020

Counting generalized Schröder paths

Xiaomei Chen, Yuan Xiang

A Schröder path is a lattice path from $(0, 0)$ to $(2 n, 0)$ with steps $(1, 1)$ , $(1, - 1)$ and $(2, 0)$ that never goes below the $x -$ axis. A small Schröder path is a Schröder path wit…

math.RA2019★ 1 cited

Note on eigenvectors from eigenvalues

Xiaomei Chen

Denton, Parke, Tao and Zhang gave a new method which determines eigenvectors from eigenvalues for Hermitian matrices with distinct eigenvalues. In this short note, we extend the ab…

math.CO2019

A note on the distribution of major index for Schröder paths

Xiaomei Chen

Bonin, Shapiro and Simion (1993) gave two formulas on the distribution of major index for Schröder paths, and proved their result for the case $E < D < N$ . In this short note, we corre…

math.CO2019

Note on the diversity of intersecting families

Xiaomei Chen, Peng Jin

Let $n = 2 k + 1$ be odd with $k \geq 3$ . In this note, we give two intersecting families with diversity larger than $\sum_{i = k + 1}^{2 k} (i 2 k)$ , which disprove a conjecture of Hua…