TY  - JOUR
AU  - Richard S. Varga
AU  - Reinhard Nabben
TI  - An algorithm for determining if the inverse of a strictly diagonally dominant Stieltjes matrix is strictly ultrametric.
JO  - Numerische Mathematik
PY  - 1993
SP  - 493
EP  - 502
VL  - 65
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/NUMA_1993__65_4_133747/
ID  - NUMA_1993__65_4_133747
ER  -