Source-pinned research

Research proof index

Search theorem names, mathematical ideas, modules, topics, projects, and role-labelled researchers. Open a result for its complete indexed Lean declaration and source record.

This index contains 2,569 research declarations. Search 10,000 more complete Mathlib declarations.

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2569 results

Project-declaredLean 4.30.0

Wkp U e Norm eq zero of ae zero

WkpU.eNorm_eq_zero_of_ae_zero

Plain-language statement

If f : WkpU d k p U hU is almost everywhere zero on U, then its Sobolev eNorm is zero.

partial differential equationsSobolev spacesanalysis

Source project: PDE

Person-level attribution pending.

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Project-declaredLean 4.30.0

Wkp U e Norm ne top

WkpU.eNorm_ne_top

Plain-language statement

The W^{k,p}(U) norm is finite.

partial differential equationsSobolev spacesanalysis

Source project: PDE

Person-level attribution pending.

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Project-declaredLean 4.30.0

Wkp U e Norm smul

WkpU.eNorm_smul

Plain-language statement

Absolute homogeneity for eNorm .

partial differential equationsSobolev spacesanalysis

Source project: PDE

Person-level attribution pending.

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Project-declaredLean 4.30.0

Wkp U ibp tendsto

WkpU.ibp_tendsto

Plain-language statement

The IBP identity passes to the limit.

partial differential equationsSobolev spacesanalysis

Source project: PDE

Person-level attribution pending.

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Project-declaredLean 4.30.0

Wkp U limit mem

WkpU.limit_mem

Plain-language statement

Given an Lp limit g and derivative limits g_ns, package them into a WkpU element.

partial differential equationsSobolev spacesanalysis

Source project: PDE

Person-level attribution pending.

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Project-declaredLean 4.30.0

Wkp U limit of cauchy Seq

WkpU.limit_of_cauchySeq

Plain-language statement

A Cauchy sequence in W^{k,p}(U) has a limit f_lim in W^{k,p}(U), with the toLp and derivtoLp projections of the sequence converging to those of f_lim.

partial differential equationsSobolev spacesanalysis

Source project: PDE

Person-level attribution pending.

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