Theorems · Definition · linear algebra
Matrix.charpoly
{R : Type u_1} → [inst : CommRing R] → {n : Type u_4} → [DecidableEq n] → [Fintype n] → Matrix n n R → Polynomial RThe characteristic polynomial of a matrix M is given by $\det (t I - M)$.
- Cited by
- 82 results in Mathlib
- Foundations
- Depth 102 from the axioms · uses propext, Classical.choice, Quot.sound
- Assumes
- CommRingDecidableEqFintype
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites6
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- CommRingstatement and proof · cited by 17,173
- Fintypestatement and proof · cited by 7,736
- Polynomialstatement · cited by 5,681
- Matrixstatement and proof · cited by 4,303
- Matrix.detproof · cited by 665
- Matrix.charmatrixproof · cited by 42
Cited by85
Results whose statement or proof uses this declaration.
- LinearMap.charpolyproof · cited by 67
- Matrix.discrproof · cited by 16
- Matrix.charpoly.univproof · cited by 13
- Matrix.charpoly.congr_simpstatement and proof · cited by 11
- Matrix.charpoly_natDegree_eq_dimstatement · cited by 11
- LinearMap.charpoly_toMatrixstatement and proof · cited by 9
- Matrix.charpoly_monicstatement and proof · cited by 9
- Matrix.aeval_self_charpolystatement and proof · cited by 6
- Matrix.det_eq_sign_charpoly_coeffstatement and proof · cited by 5
- Matrix.trace_eq_neg_charpoly_coeffstatement · cited by 5
- Matrix.IsHermitian.roots_charpoly_eq_eigenvaluesstatement · cited by 4
- LinearMap.IsSymmetric.roots_charpoly_eq_eigenvaluesproof · cited by 4