Samplinglib
Lean gate not recorded for this source state main · 0e31a3cda412
Statistical Optimal Transport · Chapter 1

Optimal transport

Stable source-facing chapter environment inside the shared Samplinglib reader.

scaffoldsource mapFull source closure not claimed
Planned route

Source → theorem map → reusable Lean nodes

01

Source audit

Definitions, theorems, assumptions, proof route, and exact anchors.

02

Upstream alignment

Reuse the canonical convex, coupling, entropy and calculus interfaces. Local source availability is not yet a compatible Lean theorem.

03

Frontier Cells

Only genuinely missing mathematical edges become theorem-sized tasks.

04

Graph placement

Dependencies, consumers, cross-library bridges, and reusable shared interfaces.

Source: printed p. 9 / PDF p. 15 ↗

This page establishes a stable source route and truth boundary; it does not claim a completed formalization.

Mathematical orientation

\[W_p(\mu,\nu)^p=\inf_{\gamma\in\Pi(\mu,\nu)}\int d(x,y)^p\,d\gamma(x,y)\]

The coupling set fixes both marginals. Separate finite-moment assumptions, existence of a minimizer, and the stronger hypotheses needed for a transport map. Reuse existing coupling and convex-potential interfaces before rebuilding them.

This is ASTIS orientation, not a verbatim source theorem or a completed formalization. Each theorem needs its own assumptions and source-to-Lean audit.

Section source map

  1. §1.1 · Transport problems printed p. 9 / PDF p. 15
  2. §1.2 · Wasserstein metrics printed p. 15 / PDF p. 21
  3. §1.3 · One-dimensional transport printed p. 21 / PDF p. 27
  4. §1.4 · Brenier maps printed p. 23 / PDF p. 29
  5. §1.5 · Kantorovich duality printed p. 29 / PDF p. 35
  6. §1.6 · The W1 dual printed p. 39 / PDF p. 45
  7. §1.7 · Discussion printed p. 42 / PDF p. 48
  8. §1.8 · Exercises printed p. 43 / PDF p. 49

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