OAI/Geometry/Arnold/Model.lean

GitHub source file

20 declarations, 0 contain sorry, 0 declared as axioms

  1. abbrev OAI.ArnoldCounterexample.CV line 10

    Also declared: ComparatorChallenges/ArnoldCounterexample.lean:10 (same declaration text).

  2. def OAI.ArnoldCounterexample.quadricPolynomial line 12

    Also declared: ComparatorChallenges/ArnoldCounterexample.lean:12 (same declaration text).

  3. def OAI.ArnoldCounterexample.normSquared line 14

    Also declared: ComparatorChallenges/ArnoldCounterexample.lean:14 (same declaration text).

  4. def OAI.ArnoldCounterexample.IsUnitQuadric line 16

    Also declared: ComparatorChallenges/ArnoldCounterexample.lean:16 (same declaration text).

  5. abbrev OAI.ArnoldCounterexample.UnitQuadric line 19

    Also declared: ComparatorChallenges/ArnoldCounterexample.lean:19 (same declaration text).

  6. lemma OAI.ArnoldCounterexample.unitQuadric_ne_zero line 21
  7. def OAI.ArnoldCounterexample.Q3 line 27

    Source documentation

    The literal projective quadric sum z_j^2 = 0 in CP^4.

    Also declared: ComparatorChallenges/ArnoldCounterexample.lean:22 (same declaration text).

    def Q3 := {q : Projectivization ℂ CV //
    …

    Mentions: OAI.ArnoldCounterexample.CV

  8. def OAI.ArnoldCounterexample.project line 31

    Also declared: ComparatorChallenges/ArnoldCounterexample.lean:26 (same declaration text).

  9. def OAI.ArnoldCounterexample.Horizontal line 39

    Source documentation

    Horizontal lifts of the real tangent of Q3 at [z].

    Also declared: ComparatorChallenges/ArnoldCounterexample.lean:34 (same declaration text).

    def Horizontal (z v : CV) : Prop :=
    …

    Mentions: OAI.ArnoldCounterexample.CV

  10. def OAI.ArnoldCounterexample.omega line 43

    Source documentation

    The restricted Fubini--Study form, evaluated on horizontal lifts.

    Also declared: ComparatorChallenges/ArnoldCounterexample.lean:38 (same declaration text).

    def omega (v w : CV) : ℝ := 2 * (∑ j, star (v j) * w j).im

    Mentions: OAI.ArnoldCounterexample.CV

  11. def OAI.ArnoldCounterexample.LocalFunctionLift line 46

    Source documentation

    A local smooth extension of the pullback of h to the unit isotropic cone.

    Also declared: ComparatorChallenges/ArnoldCounterexample.lean:41 (same declaration text).

    def LocalFunctionLift (h : Q3 → ℝ) (z : UnitQuadric)
        (U : Set CV) (g : CV → ℝ) : Prop :=
    …

    Mentions: OAI.ArnoldCounterexample.Q3, OAI.ArnoldCounterexample.UnitQuadric, OAI.ArnoldCounterexample.CV

  12. def OAI.ArnoldCounterexample.IsSmoothFunction line 51

    Also declared: ComparatorChallenges/ArnoldCounterexample.lean:46 (same declaration text).

  13. structure OAI.ArnoldCounterexample.SmoothFunction line 54

    Also declared: ComparatorChallenges/ArnoldCounterexample.lean:49 (same declaration text).

  14. def OAI.ArnoldCounterexample.IsCritical line 59

    Source documentation

    dh_q = 0, expressed using all local lifts, independent of normal extensions.

    Also declared: ComparatorChallenges/ArnoldCounterexample.lean:54 (same declaration text).

    def IsCritical (h : Q3 → ℝ) (q : Q3) : Prop :=
    …

    Mentions: OAI.ArnoldCounterexample.Q3

  15. def OAI.ArnoldCounterexample.criticalSet line 64

    Also declared: ComparatorChallenges/ArnoldCounterexample.lean:59 (same declaration text).

  16. def OAI.ArnoldCounterexample.criticalNumber line 67

    Source documentation

    The minimum critical number, including degenerate functions (ENat allows infinity).

    Also declared: ComparatorChallenges/ArnoldCounterexample.lean:62 (same declaration text).

    def criticalNumber : ℕ∞ := ⨅ h : SmoothFunction, (criticalSet h).encard

    Mentions: OAI.ArnoldCounterexample.SmoothFunction, OAI.ArnoldCounterexample.criticalSet

  17. structure OAI.ArnoldCounterexample.HamiltonianPath line 71

    Source documentation

    An explicit smooth lift of a Hamiltonian isotopy, with inverse and generator. The Hamiltonian equation uses i_X omega = dH.

    Also declared: ComparatorChallenges/ArnoldCounterexample.lean:66 (same declaration text).

    structure HamiltonianPath (φ : Q3 ≃ Q3) where
    …

    Mentions: OAI.ArnoldCounterexample.Q3

  18. def OAI.ArnoldCounterexample.IsHamiltonian line 100

    Also declared: ComparatorChallenges/ArnoldCounterexample.lean:95 (same declaration text).

  19. def OAI.ArnoldCounterexample.fixedSet line 102

    Also declared: ComparatorChallenges/ArnoldCounterexample.lean:97 (same declaration text).

  20. def OAI.ArnoldCounterexample.HasDegenerateFixedPoint line 106

    Source documentation

    Eigenvalue 1 in the derivative on the quotient tangent, not an ambient spurious vertical eigenvector. v is nonzero and horizontal.

    Also declared: ComparatorChallenges/ArnoldCounterexample.lean:101 (same declaration text).

    def HasDegenerateFixedPoint (φ : Q3 ≃ Q3) : Prop :=
    …

    Mentions: OAI.ArnoldCounterexample.Q3