On a crisp fall New England day during my junior year of college, I was walking past a subway entrance when a math problem caught my eye. A man was standing near a few brainteasers he had scribbled on ...

Algebraic structures underpin much of contemporary mathematical physics and pure mathematics, providing the language for symmetries, operator algebras and representation theory. Orthogonal polynomial ...

Representation theory studies the ways in which abstract algebraic objects—groups, rings, algebras and categories—can act by linear transformations on vector spaces or modules. By encoding an ...