2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/153363The series of three lectures given at Tel-Aviv University in 1992: 1. Tensor categories. 2. Quantum groups. 3. Topological (quantum) field theories. Published as the preprint IAS 897-92 of Tel-Aviv University and The Mortimer and Raymond Sacler Institute of Advanced Studies.plain TeX, 18 pages, no figuresQuantum Algebratext