MATH 7321 — Topology 3
4 semester hoursGraduateLectureusually offered: springtypical days: M/WBostonTraditional
Continues MATH 7221 and studies classical algebraic topology and its applications. Introduces homotopy theory. Topics include higher homotopy groups, cofibrations, fibrations, homotopy sequences, homotopy groups of Lie groups and homogeneous spaces, Hurewicz theorem, Whitehead theorem, Eilenberg-MacLane spaces, obstruction theory, Postnikov towers, and spectral sequences.
Prerequisites
- MATH 7221 (min C-)
Offering history
| Term | Sections | Enrolled | Capacity | Full | Open seats/section |
|---|---|---|---|---|---|
| Spring 2024 | 1 | 8 | 23 | 35% | 15.0 |
| Spring 2026 | 1 | 3 | 21 | 14% | 18.0 |
Snapshots from scheduled scrapes — not live seat availability. "Full" can exceed 100% when sections over-enroll.
Meeting times
Share of recent sections by weekday: M 73% · T 27% · W 100% · Th 0% · F 0%
Common patterns: MW (73% of sections), TW (27% of sections) — in patterns, R means Thursday
Professors
Spring
- Benjamin Knudsen (73% of students) · reviews
- Jose Andres Perea Benitez (27% of students) · reviews
Percentages are each professor's average share of the season's enrolled students in recent terms.
Links
Official catalog (MATH course descriptions) · Student reviews on RateMyHusky · All MATH courses · Plan it at numap.app