Back to search
2212.10451

Ramsey Theory and Geometry of Closed Loops

Nir Shvalb, Mark Frenkel, Shraga Shoval, Edward Bormashenko

wrongmedium confidence
Category
math.DS
Journal tier
Note/Short/Other
Processed
Sep 28, 2025, 12:56 AM

Audit review

Parts A and B of the paper are consistent with the standard R(3,3)=6 argument for slope–sign colorings on K6 and with the Jordan-curve same/different-region coloring examples (including the case where green triangles are impossible and red ones must appear) . However, the paper repeatedly asserts R_trans,intrans(2,3)=3 for the two-class same/different (transitive green, intransitive red) setting, which is false; 3 (and even 4) vertices do not force a monochromatic triangle, while 5 do by pigeonhole, exactly as the model argues . The paper also gives an inadequate justification for the nonzero-slope assumption (α_ik≠0) by appealing to intersections with y=0, which does not ensure pairwise distinct y-coordinates for all chosen points, though this flaw does not affect the correctness of Part A’s main conclusion .

Referee report (LaTeX)

\textbf{Recommendation:} major revisions

\textbf{Journal Tier:} note/short/other

\textbf{Justification:}

The manuscript nicely illustrates familiar Ramsey phenomena in geometric guises and provides appealing figures. However, the principal quantitative claim in the transitive/intransitive two-class setting is incorrect (the correct threshold is 5, not 3), and some auxiliary arguments (e.g., avoiding zero slopes) are not rigorously justified. Substantial corrections and clarifications are necessary.