2 papers
math.PR2019
Extremal eigenvalues of sample covariance matrices with general population
Jinwoong Kwak, Ji Oon Lee, Jaewhi Park
We consider the eigenvalues of sample covariance matrices of the form . The sample is an rectangular random matrix with real ind…
math.CO2017
On basic graphs of symmetric graphs of valency five
Da-Wei Yang, Yan-Quan Feng, Jin Ho Kwak +1
A graph $\G$ is {\em symmetric} or {\em arc-transitive} if its automorphism group $\Aut(\G)$ is transitive on the arc set of the graph, and $\G$ is {\em basic} if $\Aut(\G)$ has no…