OAI/Combinatorics/ContingencyTables/Sampling/PhysicalSmallEnergy.lean

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3 declarations, 0 contain sorry, 0 declared as axioms

Exact energy on the positive physical graph

  1. lemma OAI.ContingencyTables.SmallGraphProfiles.fullEdges_vertices line 18
  2. lemma OAI.ContingencyTables.SmallGraphProfiles.positive_vertex_is_physical line 38
  3. theorem OAI.ContingencyTables.SmallGraphProfiles.fullEnergy_physical_eq line 49

    Source documentation

    Deleting zero-weight vertices preserves the exact unnormalized energy, not merely an inequality for a restricted class of observables.

    theorem fullEnergy_physical_eq (r : I → ℕ) (c : J → ℕ) (U L : ℕ) (B : I → J → ℕ)
        (hB : ∀ i j,firstPaperSmall r c U i j=true → B i j=U)
        (H : PhysicalStates (firstPaperSmall r c U) B r c L → ℝ) :
        fullEnergy r c U L B hB (physicalExtension _ B r c L H)=
          (∑ x,∑ y,if physicalAdjacent r c U L B hB x y then
            min (hardMarginal (firstPaperSmall r c U) B r c L (physicalProfile _ B r c L x))
              (hardMarginal (firstPaperSmall r c U) B r c L (physicalProfile _ B r c L y))*
              (H x-H y)^2 else 0)/2 := by
    …

    Mentions: OAI.ContingencyTables.SmallGraphProfiles.PhysicalStates, OAI.ContingencyTables.SmallGraphProfiles.fullEnergy, OAI.ContingencyTables.SmallGraphProfiles.physicalExtension, OAI.ContingencyTables.SmallGraphProfiles.physicalAdjacent, OAI.ContingencyTables.SmallGraphProfiles.physicalProfile