Proof-critical dependence graph

Khintchine-type theorems for weighted uniform inhomogeneous approximations via transference principle

A statement-restricted graph for the zero–full measure theorem, its weighted transference inputs, and the separately marked second-moment and geometry-of-numbers branches. Contextual citations, analogies, alternative routes, and sources whose needed result is reproved in the focal paper are excluded.

Graph scope18 nodes19 proof-critical linksChecked August 23, 2026

Oriented proof graph

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Arrows point from a prerequisite toward the paper whose marked statement uses it.

  • Solid arrow: headline proof lineage
  • Dashed arrow: a separately marked side or appendix claim
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Proof-critical links

The focal proof invokes Kleinbock–Wang Theorem 2.7, restated as Theorem B, for both convergence and divergence after proving the internal equivalence of series.

Citation location: Focal Theorem B, PDF p. 5; proof of Theorem 1.3, PDF pp. 24–26; bibliography [KW23] cites Adv. Math. 428 (2023).
  • Theorem 1.3Zero–full Lebesgue-measure law for weighted uniform inhomogeneous approximation.

Focal Lemma D(1) imports German–Evdokimov Theorem 1, while Lemma D(2) invokes their recalled Theorem D; these estimates power the weighted homogeneous/inhomogeneous transference arguments.

Citation location: Focal Lemma D, PDF pp. 11–12, citation [GK15, Theorem 1 and Theorem D].
  • Lemma D and weighted transference theoremsQuantitative pseudo-compound-body transference used to pass between homogeneous and inhomogeneous approximation statements.
An Introduction to the Geometry of NumbersKhintchine-type theorems for weighted uniform inhomogeneous approximations via transference principleAncillary claimTerminal source

Cassels is the focal paper's reference for dual-lattice and classical geometry-of-numbers background surrounding its Minkowski statement.

Citation location: Focal geometry-of-numbers setup, PDF pp. 10–13, citation [cas].
  • Theorem 3.1 and dual-body setupClassical geometry-of-numbers input used in the paper's lattice formulation.

The second-moment lower bound is applied locally to rectangular events; the resulting positive limsup measure is upgraded to full measure after the density step.

Citation location: Chung–Erdős pp. 180–181, equations (4)–(6); Kleinbock–Wang Lemma 3.1 and Theorem 2.5 Steps 2–4, pp. 7–12.
  • Theorem 2.5Abstract rectangular ubiquity theorem used in the divergence proof of Theorem 2.7.
Lectures on Analysis on Metric SpacesMeasure theoretic laws for limsup sets defined by rectanglesHeadline lineageTerminal source

The metric 5r covering theorem supplies the selection idea for the aligned-rectangle covering lemma used in the first two steps of Theorem 2.5.

Citation location: Heinonen Theorem 1.2; Kleinbock–Wang Lemma 3.3 and Theorem 2.5 Steps 1–2, pp. 7–9.
  • Theorem 2.5Abstract rectangular ubiquity theorem used in the divergence proof of Theorem 2.7.
Geometrie der ZahlenMeasure theoretic laws for limsup sets defined by rectanglesHeadline lineageTerminal source

Minkowski's convex-body theorem gives the nonzero integer vector satisfying the simultaneous rectangular inequalities, establishing the ubiquity input and divergence half of Theorem 2.7.

Citation location: Kleinbock–Wang p. 18 and Lemma 6.2 proof, p. 19.
  • Lemma 6.2Minkowski-based ubiquity input for the rectangular Khintchine–Groshev theorem.
  • Theorem 2.7General Khintchine–Groshev zero–full law for rectangular approximation used as Theorem B by the focal paper.
Geometric Measure TheoryMeasure theoretic laws for lim sup setsHeadline lineageTerminal source

Federer's adequate-family selection theorem and inner regularity provide the disjoint covering and closed approximation used in BDV Lemmas 6–7, which prove Proposition 1.

Citation location: Federer §§2.8.7 and 2.2.2; BDV printed pp. 26–29.
  • Proposition 1Positive local density implies full measure.
Geometrie der ZahlenA strengthening of Mahler’s transference theoremHeadline lineageTerminal source

Minkowski's theorem on successive minima is the external inequality used in German–Evdokimov Lemma 2, one of the two immediate inputs to the proof of Theorem 1.

Citation location: German–Evdokimov Lemma 2 proof, printed pp. 66–67, and Theorem 1 proof §6.
  • Theorem 1Strengthened consecutive-minima transference estimate imported in focal Lemma D(1).
Geometrie der ZahlenEin Übertragungsprinzip für konvexe KörperHeadline lineageTerminal source

Mahler's consecutive-minima transference argument rests on the classical geometry-of-numbers minima inequalities; expansion stops at Minkowski's published book.

Citation location: Mahler 1939 proof; German–Evdokimov discussion surrounding equations (10)–(11), p. 63.
  • Consecutive-minima transference theoremRelates successive minima of a parallelepiped and its pseudo-compound dual.
Diophantine ApproximationOn Diophantine exponents and Khintchine’s transference principleHeadline lineageTerminal source

Schmidt's exterior-algebra theorem supplies German's Proposition 3; German then applies it in the proof of Lemma 3 to obtain the cofactor transformation rule needed by German–Evdokimov.

Citation location: German 2012 Proposition 3 and Lemma 3, printed pp. 35–38; citation [8, Chapter VII §3, Theorem 1].
  • Proposition 3 and Lemma 3Cofactor/section-dual covariance imported as German–Evdokimov Lemma 1(2).

Vaaler's Lemma 4 explicitly invokes Kanter Corollary 3.2 to preserve peakedness under products; that comparison drives the proof of Theorem 1 and its cube-section corollary.

Citation location: Vaaler Lemma 4, printed p. 546; Kanter Corollary 3.2, printed p. 76.
  • Corollary to Theorem 1Every central hyperplane section of the cube has the lower-volume bound used in German–Evdokimov Corollary 1.

Kanter's log-concavity step uses Prékopa's theorem that integration over variables preserves logarithmic concavity, supporting the product/convolution peakedness result behind Corollary 3.2.

Citation location: Kanter log-concavity lemmas preceding Corollary 3.2; Prékopa Theorem 6, p. 342.
  • Corollary 3.2Peakedness is preserved under products, the key input in Vaaler's cube-versus-Gaussian comparison.

Leindler explicitly follows Prékopa's approximation argument to pass from step functions to arbitrary measurable functions; that is the only inherited step needed for the marked inequality.

Citation location: Leindler proof after the step-function case; Prékopa 1971 proof of Theorem 1.
  • Integral converse-to-Hölder inequalityOne-dimensional integral inequality imported in Prékopa's log-concavity proof.