TY  - JOUR
AU  - Nobuaki Obata
TI  - Markov product of positive definite kernels and applications to $Q$-matrices of graph products
JO  - Colloquium Mathematicum
PY  - 2011
SP  - 177
EP  - 184
VL  - 122
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm122-2-2/
DO  - 10.4064/cm122-2-2
LA  - en
ID  - 10_4064_cm122_2_2
ER  -