2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/104621After a brief introduction to D-brane actions, the constrained dynamics and the constraint quantization of some D-brane actions is considered.``Plenary Talk'' presented by DSK at THEP-I, I.I.T. Roorkee, Roorkee - 247667, India, March 16-20, 2005 (To appear in the Conference Proceedings)High Energy Physics - Theorytext