2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/45198We discuss some new invariants of quark mixing and show their usefulness with a simple example. We also present some other new tools for analyzing quark mixing.(talk presented at the YUKAWA COUPLINGS AND THE ORIGINS OF MASS workshop, University of Florida, Gainesville, Florida, February, 1994), 9 pages, latex, ITP-SB-94-30High Energy Physics - Phenomenologytext