OAI/Probability/InvariantIsing/Cavity/CavitySchurSpectrum.lean
7 declarations, 0 contain sorry, 0 declared as axioms
Resolvent compression for the actual finite repeated spectrum. The complete special/cavity basis gives the Schur compression directly.
- lemma
OAI.InvariantIsing.cavity_complete_basis_gramline 14 - lemma
OAI.InvariantIsing.cavity_complete_basis_blocksline 26 - theorem
OAI.InvariantIsing.cavity_complete_blocks_inverseline 36Source documentation
The resolvent of the full special/cavity block is the same complete orthogonal compression of the original spectral resolvent.
theorem cavity_complete_blocks_inverse {r d n : ℕ} (D : Matrix (Fin r) (Fin r) ℝ) (B : Matrix (Fin r) (Fin d) ℝ) (E : Matrix (Fin r) (Fin n) ℝ) (b : ℝ) (hB : B.transpose * B = 1) (hE : E.transpose * E = 1) (hBE : B.transpose * E = 0) (hcomplete : B * B.transpose + E * E.transpose = 1) (hD : IsUnit (b • (1 : Matrix (Fin r) (Fin r) ℝ) - D).det) : (b • (1 : Matrix (Fin d ⊕ Fin n) (Fin d ⊕ Fin n) ℝ) - cavitySpecialBlocks D B E)⁻¹ = cavitySpecialBlocks (b • 1 - D)⁻¹ B E := by …Mentions: OAI.InvariantIsing.cavitySpecialBlocks
- lemma
OAI.InvariantIsing.cavityRepeatedSpectrum_shiftline 63 - lemma
OAI.InvariantIsing.cavityRepeatedSpectrum_inverse_mulline 73 - lemma
OAI.InvariantIsing.cavityRepeatedSpectrum_resolventline 85 - theorem
OAI.InvariantIsing.cavity_limiting_blocks_compressionline 94Source documentation
Exact
cav:compression: the limiting cavity columns produce the scalar finite-law Stieltjes transform, for every complete complement.theorem cavity_limiting_blocks_compression {m d n : ℕ} (rho lam : Fin m → ℝ) (b : ℝ) (hrho : ∀ a, 0 ≤ rho a) (hsum : ∑ a, rho a = 1) (B : Matrix (Fin (m * n)) (Fin d) ℝ) (hB : B.transpose * B = 1) (hBE : B.transpose * cavityLimitingStack (n := n) rho = 0) …Mentions: OAI.InvariantIsing.cavityLimitingStack