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Week 1 • 02/02 - 02/06 Current
Important: Welcome to the Spring 2026 edition of Symm4ML! Office hours start Wednesday.
Lecture 1 Mon, 02/02
Course Overview and Intro to Finite Group Theory I
Readings:
Lecture 2 Wed, 02/04
Intro to Finite Group Theory II
Readings:
Week 2 • 02/09 - 02/13
Lecture 3 Mon, 02/09
Linear Algebra: Vector spaces, nullspaces, orthogonality, Kronecker product and change of basis
Readings:
Lecture 4 Wed, 02/11
Representations of Finite Groups I: Reps, Irreps, Schur's Lemma, Wonderful Orthogonality Theorem
Readings:
Week 3 • 02/16 - 02/20
Important: Monday, Feb. 16 is Presidents' Day Holiday. Tuesday, Feb. 17 -- Monday schedule held
Lecture 5 Tue, 02/17
Representations of Finite Groups II: Character of Representations
Readings:
Lecture 6 Wed, 02/18
Representations of Finite Groups III: Tensor Products and Decompose to Irreps
Readings:
Week 4 • 02/23 - 02/27
Lecture 7 Mon, 02/23
Vibrational Modes I
Readings:
Lecture 8 Wed, 02/25
Vibrational Modes II
Readings:
Week 5 • 03/02 - 03/06
Lecture 9 Mon, 03/02
Intro to Lie Algebra
Readings:
Lecture 10 Wed, 03/04
SO(2) and SO(3) and their Representations
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Week 6 • 03/09 - 03/13
Important: Exam Practice Problems:
Lecture 11 Mon, 03/09
O(3), Cartesian Tensors, and Spherical Harmonics I
Readings:
Lecture 12 Wed, 03/11
O(3), Cartesian Tensors, and Spherical Harmonics II
Readings:
Week 7 • 03/16 - 03/20
Lecture 13 Mon, 03/16
Exam Logistics and Review of Lec. 1-8
Lecture 14 Wed, 03/18
Exam 1 (Lectures 1-8)
Readings:
MIT Spring Break 3/23 - 3/27
Week 8 • 03/30 - 04/03
Lecture 15 Mon, 03/30
Signals on Spheres and Fourier Transforms on Groups I
Readings:
Lecture 16 Wed, 04/01
Signals on Spheres and Fourier Transforms on Groups II
Readings:
Week 9 • 04/06 - 04/10
Lecture 17 Mon, 04/06
Group and Steerable Convolution I
Readings:
Lecture 18 Wed, 04/08
Group and Steerable Convolution II
Readings:
Week 10 • 04/13 - 04/17
Important: Exam Practice Problems:
Lecture 19 Mon, 04/13
Group and Steerable Convolution III
Readings:
Lecture 20 Wed, 04/15
Equivariant Activations and Attention
Readings:
Week 11 • 04/20 - 04/24
Lecture 21 Mon, 04/20
Exam 2 (Lectures 9-20)
Lecture 22 Wed, 04/22
How to product your tensors for great good.
Readings:
Week 12 • 04/27 - 05/01
Important: April 20 is Patriots' Day! No class Monday!
No lecture this day
Lecture 23 Wed, 04/29
Symmetries were made to be broken.
Readings:
Week 13 • 05/04 - 05/08
Lecture 24 Mon, 05/04
Symmetry and Physics I: Why condensed matter physicists and friends are obsessed.
Lecture 25 Wed, 05/06
Symmetry and Physics II: The Lorentz Group and the Standard Model, i.e. Tess rants about spin 1/2.
Readings:
Week 14 • 05/11 - 05/15
Important: Exam Practice Problems:
Lecture 26 Mon, 05/11
Final Exam
No lecture this day