Made-Up Courses

Estimated study time: 10 minutes

Table of contents

These are courses that do not exist at the University of Waterloo — at least not under these names or in quite this form. The subject matter is real mathematics, music history, or critical thinking; the course number and syllabus are invented. Each entry below gives the course title, a short description of what it covers, and a note on why this particular gap was worth filling fictionally.


Pure Mathematics

PMATH 841: Class Field Theory

The crowning theorem of classical algebraic number theory: every abelian extension of a number field is determined by congruence conditions, and the Galois group is canonically isomorphic to a quotient of an idèle class group. The notes cover local and global reciprocity laws, the Artin map, class formations, and the idèlic formulation.

Why make it up
UW’s PMATH sequence goes deep into algebra and number theory but stops just short of class field theory, which sits at the threshold between advanced coursework and research. It is one of the most complete and satisfying theories in all of mathematics — a theory where everything works out — and deserved a set of notes.

PMATH 842: Automorphic Forms and the Langlands Program

Modular forms as automorphic representations of GL(2), local representation theory over p-adic and archimedean fields, L-functions and their functional equations, and a panoramic view of the Langlands correspondence. The notes build carefully from classical modular forms to the adèlic reformulation.

Why make it up
The Langlands program is arguably the central organising vision of modern number theory and representation theory. No introductory course notes on the subject exist for this curriculum; writing them forces a synthesis of material scattered across half a dozen graduate textbooks.

PMATH 847: Geometric Representation Theory

Representations of Lie algebras realised as geometric objects: the Borel–Weil–Bott theorem, Beilinson–Bernstein localisation, D-modules on flag varieties, perverse sheaves, and the geometric proof of the Kazhdan–Lusztig conjecture. Algebra, algebraic geometry, and topology woven together.

Why make it up
Geometric representation theory is a modern synthesis that rewrites classical results in a language where geometry does the heavy lifting. It is not taught as a single coherent course anywhere in the standard curriculum, yet it underlies much of contemporary research.

PMATH 852: Several Complex Variables and Hodge Theory

Holomorphic functions of several variables, the ∂̄-operator and Dolbeault cohomology, Kähler manifolds, and the Hodge decomposition theorem. The notes also cover the Hard Lefschetz theorem and the Kodaira vanishing theorem.

Why make it up
Hodge theory is one of the most beautiful results in all of mathematics — it says that on a compact Kähler manifold, the topology and the complex analysis constrain each other in a surprisingly rigid way. The subject bridges complex analysis, differential geometry, and algebraic topology but rarely appears in a single course.

PMATH 855: Microlocal Analysis

Pseudodifferential operators, the symbol calculus, wavefront sets, propagation of singularities for hyperbolic equations, and semiclassical analysis. The approach follows Hörmander and Zworski, with applications to spectral theory and scattering.

Why make it up
Microlocal analysis is the modern language of linear PDE and mathematical physics, yet it sits in an awkward gap: too advanced for a standard PDE course, rarely taught as a standalone subject. The phase-space perspective it introduces is indispensable for anyone doing analysis.

PMATH 856: Geometric Measure Theory

Hausdorff measure, rectifiable sets, the area and coarea formulas, sets of finite perimeter, currents, and the regularity theory for area-minimising surfaces. The notes address Plateau’s problem and the techniques that underlie its solution.

Why make it up
Geometric measure theory provides the right framework for minimal surfaces and variational problems in geometry, but its foundational machinery — Rademacher’s theorem, the compactness theorem for currents — is rarely assembled in one place for a graduate student audience.

PMATH 864: Infinite-Dimensional Lie Algebras and Vertex Algebras

Kac–Moody algebras and their root systems, the Virasoro algebra, highest-weight representations, the Weyl–Kac character formula, and vertex operator algebras as the mathematical language of two-dimensional conformal field theory.

Why make it up
Vertex algebras are the algebraic structure underlying a large swath of modern mathematical physics and the geometric Langlands program, yet they are almost never taught in a mathematics department. The subject rewards the reader with one of the deepest connections between algebra and physics.

PMATH 867: Geometric Group Theory

Cayley graphs, quasi-isometries, the Švarc–Milnor lemma, hyperbolic groups in the sense of Gromov, CAT(0) spaces, ends of groups, and the large-scale geometry of lattices in Lie groups.

Why make it up
Geometric group theory asks: what does a group look like when you zoom out and ignore the algebra? The resulting landscape — hyperbolic groups, boundaries at infinity, quasi-isometric rigidity — is both visually intuitive and technically deep, and it reorganises classical group theory in a surprising way.

PMATH 869: Knot Theory and Low-Dimensional Topology

Knot diagrams and Reidemeister moves, the knot group, Seifert surfaces and genus, the Alexander polynomial, the Jones polynomial via the Kauffman bracket, Khovanov homology, and an introduction to 3-manifold topology and Thurston’s geometrisation.

Why make it up
Knot theory is one of the most accessible entry points to research-level topology — the objects are easy to draw, the invariants are computable, and the open problems are genuinely hard. It also serves as the gateway to Floer homology and other cutting-edge tools.

Combinatorics and Optimization

CO 740: Additive Combinatorics

Additive structure in abelian groups: Freiman’s theorem and the structure of sets with small doubling, the Balog–Szemerédi–Gowers theorem, Fourier analytic methods, the cap-set problem, and Szemerédi’s theorem on arithmetic progressions.

Why make it up
Additive combinatorics has exploded since Gowers’s proof of Szemerédi’s theorem and the Green–Tao theorem, but it sits between number theory and combinatorics in a way that makes it easy to fall through the cracks of any one curriculum. The Fourier-analytic perspective it introduces is broadly useful.

CO 741: Extremal Combinatorics and Ramsey Theory

Turán-type problems, the Kruskal–Katona theorem, the Bollobás set-pairs inequality, Ramsey numbers and their bounds, Ramsey multiplicity, Hales–Jewett, and the probabilistic method as a systematic tool.

Why make it up
Extremal combinatorics contains some of the most elegant short proofs in mathematics alongside some of the most notorious open problems (like the exact value of R(5,5)). It is a natural companion to graph theory and a good training ground for probabilistic intuition.

CO 743: Discrete and Computational Geometry

Convexity, Carathéodory–Radon–Helly theorems, polytope combinatorics, Voronoi diagrams, Delaunay triangulations, point-location, epsilon-nets, and the polynomial method applied to combinatorial geometry problems.

Why make it up
Discrete geometry occupies the frontier between combinatorics, topology (Borsuk–Ulam), and algorithms. Guth and Katz’s resolution of the Erdős distinct distances problem via polynomial methods made the area newly exciting, and it deserves more visibility in a combinatorics curriculum.

CO 760: Online Algorithms and Competitive Analysis

The competitive ratio framework, ski rental and rent-or-buy problems, paging and the k-server conjecture, online matching, the secretary problem, and primal-dual techniques for online algorithm design.

Why make it up
Online algorithms formalise the question: how well can you do when you must decide without seeing the future? The competitive-ratio framework gives a clean mathematical answer and connects naturally to game theory and mechanism design. It is underrepresented in most algorithms curricula.

CO 770: Polynomial Optimization and Sum-of-Squares

Nonnegative polynomials and sums of squares, Hilbert’s 17th problem, the Positivstellensatz, the Lasserre SDP hierarchy, moment problems, and applications to combinatorial optimisation and control theory.

Why make it up
The sum-of-squares framework is one of the most powerful modern tools for both proving hardness results (via SOS lower bounds) and solving problems in practice (via convex relaxations). It unifies real algebraic geometry and convex optimisation in a way that is rarely taught in a single course.

Music

A direct continuation of MUSIC 140 (Simon Wood, UW): MTV and the visual turn, Michael Jackson, Madonna, hip-hop from the Bronx to global dominance, electronic dance music, alternative and grunge, and the internet’s disruption of the music industry.

Why make it up
MUSIC 140 ends around 1980, just as popular music was about to undergo its most dramatic transformation since the invention of rock and roll. The visual economy of MTV, the cultural politics of hip-hop, and the collapse of the major-label system are all left hanging. MUSIC 141 closes that chapter.

Japanese city pop, enka, and the idol system; Korean pop from trot to K-pop; Bollywood and Indian film music; Latin pop and reggaeton; Southeast Asian popular traditions. Each is treated as a living culture with its own internal logic, not as an exotic supplement to the Western canon.

Why make it up
The standard popular music curriculum is almost entirely Anglo-American. Billions of people consume, argue about, and make music in traditions that never appear in a Western syllabus. MUSIC 142 corrects that imbalance without treating non-Western music as merely derivative.

MUSIC 143: The Other Side of the Record

Country, gospel, jazz (beyond the swing chapter in MUSIC 140), reggae, progressive rock, singer-songwriters, and African popular music — the traditions that outsold or outlasted rock but were marginalised by a textbook organised around the “blues-to-rock-to-punk” spine.

Why make it up
Every survey course makes choices about what to centre, and centering rock necessarily relegates country, gospel, and African popular music to footnotes. MUSIC 143 asks what the story looks like when you decenter rock — and finds a richer picture.

Philosophy

PHIL 145c: Critical Thinking — Case Studies (Chinese)

Three real Chinese internet controversies from 2025–2026 dissected using the argument-analysis tools from PHIL 145: source evaluation, reconstruction of unstated premises, fallacy identification (ad hominem, strawman, appeal to authority), and charitable interpretation.

Why make it up
PHIL 145 teaches the tools; PHIL 145c applies them to cases where the emotional stakes are high and the fallacies are real. Chinese internet discourse in particular offers rich material: the arguments are public, the stakes feel urgent to participants, and the logical errors are instructive precisely because they are so easy to make.

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