Source-pinned research

Research proof index

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Project-declaredLean 4.29.0-rc6

Moser Reg Pow le rpow of nonneg le N

DeGiorgi.moserRegPow_le_rpow_of_nonneg_le_N

Plain-language statement

moserRegPow ε N p t ≤ (ε + t) ^ (p / 2) for 0 ≤ t ≤ N, since moserRegPow t = (ε + clip(t))^{p/2} - ε^{p/2} and ε^{p/2} ≥ 0.

partial differential equationsregularity theoryanalysis

Source project: DeGiorgi

Person-level attribution pending.

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Project-declaredLean 4.29.0-rc6

Moser Reg Pow sq le rpow of nonneg le N

DeGiorgi.moserRegPow_sq_le_rpow_of_nonneg_le_N

Plain-language statement

moserRegPow ε N p t ^ 2 ≤ (ε + t) ^ p for 0 ≤ t ≤ N and 1 < p. Since 0 ≤ moserRegPow ≤ (ε + t)^{p/2}, squaring gives ≤ ((ε + t)^{p/2})^2 = (ε + t)^p.

partial differential equationsregularity theoryanalysis

Source project: DeGiorgi

Person-level attribution pending.

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Project-declaredLean 4.29.0-rc6

Moser Reg Power Cutoff Witness norm sq le

DeGiorgi.moserRegPowerCutoffWitness_norm_sq_le

Project documentation

Pointwise gradient norm bound for the regularized powered cutoff. Extracted as a standalone lemma to keep the surrounding proof context small.

partial differential equationsregularity theoryanalysis

Source project: DeGiorgi

Person-level attribution pending.

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