PIPages
Labs

Chelsea Walton

Rice University, TX·Mathematics & Statistics

For nearly two centuries, algebra has given mathematicians a language for symmetry, the ways an object can be transformed while keeping its essential shape. Category theory takes a broader view: it studies objects together with the maps that carry one object to another.

Fields

Mathematics & Statistics

Physics

Topics

category theory

monoidal categories

tensor categories

Grants
1 known grant, through Apr 2027

What they work on

  1. Extend classical properties of algebras over a field to algebras in monoidal categories, and identify properties that carry significant meaning only in the categorical setting.
  2. Study Frobenius algebras and other algebraic structures in monoidal categories, especially those tied to topological quantum field theories (TQFTs).
  3. Investigate representations of modular tensor categories, which are central to 2-dimensional conformal field theory and correspond to 3d TQFTs, building on canonical representations of braided monoidal categories.

More about the research

Recasting classical algebra in this setting can reveal structure that was hidden before, with significant consequences in quantum physics. This project works within monoidal categories, which are categories that come with a built-in way to combine objects, and to combine the maps between them.

Why it matters

This is basic mathematics. Upgrading classical algebra to the setting of monoidal categories deepens the mathematical description of symmetry, and because these structures underlie topological and conformal quantum field theories, the results could eventually inform mathematical physics. A planned textbook series aims to make quantum algebra accessible to more students.

Known grants

From NIH and NSF research grants. Labs often have other funding we can't see.

Studies in Categorical Algebra

NSF · May 2024 – Apr 2027

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Corey Jones

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Classify approximately finite-dimensional actions of amenable tensor categories on approximately finite-dimensional C*-algebras using K-theoretic invariants, extending earlier results for fusion categories.

The school

Rice University: 24 labs on PI Pages, $278M a year on research, 267 research doctorates a year.

More about Rice University

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