OAI/MathematicalPhysics/Boltzmann/Branching/Moments.lean
10 declarations, 0 contain sorry, 0 declared as axioms
Integrable moments of finite-entropy data
The weighted entropy assumption from the manuscript controls mass, kinetic energy, absolute entropy, and vector momentum. These conclusions use the actual integrability assumption rather than any default value of a Bochner integral.
- theorem
OAI.BoltzmannNonuniqueness.entropyMoment_nonnegline 19 - theorem
OAI.BoltzmannNonuniqueness.density_le_entropyMomentline 24 - theorem
OAI.BoltzmannNonuniqueness.energyDensity_le_entropyMomentline 30 - theorem
OAI.BoltzmannNonuniqueness.absEntropyDensity_le_entropyMomentline 35 - theorem
OAI.BoltzmannNonuniqueness.momentumDensity_norm_le_entropyMomentline 40 - theorem
OAI.BoltzmannNonuniqueness.FiniteEntropyDatum.integrableline 54Source documentation
Finite weighted entropy gives finite mass.
theorem integrable : Integrable f := by …
- theorem
OAI.BoltzmannNonuniqueness.FiniteEntropyDatum.integrable_energyline 60Source documentation
The energy functional integrates an integrable density.
theorem integrable_energy : Integrable (fun z => ‖z.2‖ ^ 2 * f z) := by …
- theorem
OAI.BoltzmannNonuniqueness.FiniteEntropyDatum.integrable_absEntropyline 68Source documentation
This is absolute entropy, including the convention at zero from the model.
theorem integrable_absEntropy : Integrable (fun z => f z * |Real.log (f z)|) := by …
- theorem
OAI.BoltzmannNonuniqueness.FiniteEntropyDatum.integrable_momentumline 79Source documentation
The vector momentum integral is a genuine Bochner integral.
theorem integrable_momentum : Integrable (fun z => f z • z.2) := by …
- theorem
OAI.BoltzmannNonuniqueness.FiniteEntropyDatum.integrable_entropyline 85