%0 Journal Article
%A Nobuaki Obata
%T Markov product of positive definite kernels and applications to $Q$-matrices of graph products
%J Colloquium Mathematicum
%D 2011
%P 177-184
%V 122
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/cm122-2-2/
%R 10.4064/cm122-2-2
%G en
%F 10_4064_cm122_2_2