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Analogues of the Robin–Lagarias criteria for the Riemann hypothesis
International Journal of Number Theory ( IF 0.5 ) Pub Date : 2020-09-30 , DOI: 10.1142/s1793042121500111 Lawrence C. Washington 1 , Ambrose Yang 2
International Journal of Number Theory ( IF 0.5 ) Pub Date : 2020-09-30 , DOI: 10.1142/s1793042121500111 Lawrence C. Washington 1 , Ambrose Yang 2
Affiliation
Robin’s criterion states that the Riemann hypothesis is equivalent to σ ( n ) < e γ n log log n for all integers n ≥ 5 0 4 1 , where σ ( n ) is the sum of divisors of n and γ is the Euler–Mascheroni constant. We prove that the Riemann hypothesis is equivalent to the statement that σ ( n ) < e γ 2 n log log n for all odd numbers n ≥ 3 4 ⋅ 5 3 ⋅ 7 2 ⋅ 1 1 ⋯ 6 7 . Lagarias’s criterion for the Riemann hypothesis states that the Riemann hypothesis is equivalent to σ ( n ) < H n + exp H n log H n for all integers n ≥ 1 , where H n is the n th harmonic number. We establish an analogue to Lagarias’s criterion for the Riemann hypothesis by creating a new harmonic series H n ′ = 2 H n − H 2 n and demonstrating that the Riemann hypothesis is equivalent to σ ( n ) ≤ 3 n log n + exp H n ′ log H n ′ for all odd n ≥ 3 . We prove stronger analogues to Robin’s inequality for odd squarefree numbers. Furthermore, we find a general formula that studies the effect of the prime factorization of n and its behavior in Robin’s inequality.
中文翻译:
黎曼假设的 Robin-Lagarias 准则的类似物
罗宾的准则指出,黎曼假设等价于σ ( n ) < e γ n 日志 日志 n 对于所有整数n ≥ 5 0 4 1 , 在哪里σ ( n ) 是除数的总和n 和γ 是欧拉-马斯切罗尼常数。我们证明了黎曼假设等价于以下陈述σ ( n ) < e γ 2 n 日志 日志 n 对于所有奇数n ≥ 3 4 ⋅ 5 3 ⋅ 7 2 ⋅ 1 1 ⋯ 6 7 . 拉加里亚斯对黎曼假设的标准指出,黎曼假设等价于σ ( n ) < H n + 经验 H n 日志 H n 对于所有整数n ≥ 1 , 在哪里H n 是个n 次谐波数。我们通过创建一个新的调和级数,为黎曼假设建立了一个类似于拉加里亚斯标准的类比H n ' = 2 H n - H 2 n 并证明黎曼假设等价于σ ( n ) ≤ 3 n 日志 n + 经验 H n ' 日志 H n ' 对于所有奇怪的n ≥ 3 . 我们证明了对于奇数平方数的 Robin 不等式更强的类似物。此外,我们找到了一个研究素数分解效果的通用公式n 及其在 Robin 不等式中的行为。
更新日期:2020-09-30
中文翻译:
黎曼假设的 Robin-Lagarias 准则的类似物
罗宾的准则指出,黎曼假设等价于