2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/107507Some aspects of Dirac spinors are resumed and studied in order to interpret mathematically the P and T operations in a gravitational field.AmSTeX, 22 pages, amsppt styleDifferential GeometryAstrophysicsGeneral Relativity and Quantum CosmologyHigh Energy Physics - TheoryMathematical PhysicsQuantum Physics53C27, 83C60A note on Dirac spinors in a non-flat space-time of general relativitytext