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20132026
most citedLimits of quotients of real polynomial functions of three variables

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math.NT2026

Galois-Orbit Structure, Ramanujan Sums, and Stable-Range Collapse for Cyclotomic Cosine Formulas

Juan D. Vélez, Carlos A. Cadavid

We study cyclotomic cosine evaluations beyond the fully symmetric setting by combining Galois-orbit structure with finite-frequency expansions. First, for truncation-compatible pol…