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 10 research declarations. Search 10,000 more complete Mathlib declarations.

1 topic

10 results

Clear filters
Project-declaredLean 4.29.0-rc6

Is Weak Solution sub Datum of dirichlet Problem

DeGiorgi.isWeakSolution_subDatum_of_dirichletProblem

Plain-language statement

A Dirichlet solution lifts to a zero-boundary weak solution for the shifted unknown u - uā‚€.

partial differential equationsregularity theoryanalysis

Source project: DeGiorgi

Person-level attribution pending.

View proof record
Project-declaredLean 4.29.0-rc6

Weak Problem exists of divergence Data

DeGiorgi.weakProblem_exists_of_divergenceData

Plain-language statement

Existence of zero-Dirichlet weak solutions for divergence-form right-hand side data div F.

partial differential equationsregularity theoryanalysis

Source project: DeGiorgi

Person-level attribution pending.

View proof record
Project-declaredLean 4.29.0-rc6

Weak Problem unique

DeGiorgi.weakProblem_unique

Plain-language statement

Zero-boundary weak solutions are unique up to a.e. equality.

partial differential equationsregularity theoryanalysis

Source project: DeGiorgi

Person-level attribution pending.

View proof record
Project-declaredLean 4.29.0-rc6

Weak Solution stability

DeGiorgi.weakSolution_stability

Plain-language statement

Stability estimate for weak solutions.

partial differential equationsregularity theoryanalysis

Source project: DeGiorgi

Person-level attribution pending.

View proof record