Algebraic Topology (MTH-ALT) Lecture 2

From a channel Lumen includes in full: This is the official recorded-lecture channel of ICTP's pre-PhD diploma programme. Every sampled title is a numbered graduate course lecture (analysis, topology, QM, EM, Standard Model, seismology), and every available transcript is a professor teaching technical material at a blackboard. There are no hooks, promos or entertainment framing. It is purely instructional content, so the whole channel qualifies, with title patterns catching any stray ceremonies, announcements or admission videos.