2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/141428Pairs of metrics in a three-dimensional linear vector space are considered, one of which is a Minkowski type metric with the signature (+,-,-). Such metric pairs are classified and canonical presentations for them in each class are suggested.AmSTeX, 17 pages, amsppt styleMetric Geometry15A63text