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2410.19648

New results on embeddings of self-similar sets via renormalization

Amir Algom, Michael Hochman, Meng Wu

correcthigh confidence
Category
Not specified
Journal tier
Strong Field
Processed
Sep 28, 2025, 12:56 AM

Audit review

The uploaded paper explicitly frames the statement “if log α_i is not in the Q-span of {log β_j} for some i, then there is no affine embedding E(X,Y)” as Conjecture 1.1—open in general—and proves it only under additional hypotheses (e.g., algebraic contraction ratios, rank conditions, almost-everywhere parameters) rather than as a general theorem. See the precise formulation of Conjecture 1.1 and its status, plus the new partial results Theorems 1.2 and 1.3, in the paper’s introduction and main results . The broader context (relation to intersections and known special cases) further confirms that the unrestricted statement remains open in the non-homogeneous case . By contrast, the model invokes the claim as an already-established “logarithmic commensurability theorem” for embeddings and concludes E(X,Y)=∅ without any extra assumptions—this is exactly the conjecture and is not known in full generality. The “logarithmic commensurability principle” referenced in the paper concerns invariance of the Q-span of logarithmic scales under choices of generators for a fixed set, not an embedding theorem that would settle the conjecture .

Referee report (LaTeX)

\textbf{Recommendation:} minor revisions

\textbf{Journal Tier:} strong field

\textbf{Justification:}

The work introduces a new renormalization framework in the space of embeddings and leverages Assouad-dimension projection results to establish the affine-embedding conjecture in notable regimes (algebraic parameters, rank constraints, and almost-everywhere parameter choices). The results improve existing bounds and methods and are likely to influence further progress on related intersection and embedding problems. Minor clarifications would further aid readability and adoption.