Source-pinned research

Research proof index

Search theorem names, mathematical ideas, modules, topics, projects, and role-labelled researchers. Open a result for its complete indexed Lean declaration and source record.

This index contains 1 research declarations. Search 10,000 more complete Mathlib declarations.

1 topic
Project-declaredLean 4.32.0

Schur triangulation

Matrix.schur_triangulation

Plain-language statement

Schur triangulation, Schur decomposition for matrices over an algebraically closed field. In particular, a complex matrix can be converted to upper-triangular form by a change of basis. In other words, any complex matrix is unitarily similar to an upper triangular matrix.

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

View proof record