An Elementary Problem Equivalent to the Riemann Hypothesis by Jeffrey C. Lagarias 2026-11-05
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By Jeffrey C. Lagarias. American Mathematical Monthly 109(6), 534–543 (2002). DOI doi.org/10.1080/00029890.2002.11919883 .
Verified locator: first page, Problem E, equation (1.1) and Theorem 1.1; harmonic numbers and the sum-of-divisors inequality equivalent to the Riemann hypothesis.
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Polyharmonic Maass forms for PSL(2,Z) by Jeffrey C. Lagarias and Robert C. Rhoades 2026-11-05
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By Jeffrey C. Lagarias and Robert C. Rhoades. Ramanujan Journal 41, 191–232 (2016), DOI doi.org/10.1007/s11139-015-9729-1 . The preprint was submitted in 2015.
Verified locators: preprint pages 1–2, equations (1.1)–(1.2), modularity, growth condition and iterated Laplacian; pages 3–4, Theorem 1.1 and construction of a Taylor basis from Eisenstein series.
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