Exponential Sums and the Riemann Zeta Function V
Exponential Sums and the Riemann Zeta Function V
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指数和和黎曼 Zeta 函数 V
DOI:
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发表时间:
2005
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影响因子:
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通讯作者:
M. Huxley
中科院分区:
文献类型:
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作者:
M. Huxley
A Van der Corput exponential sum is S = Σ exp (2 π i f(m)) where m has size M, the function f(x) has size T and α = (log M) / log T < 1. There are different bounds for S in different ranges for α. In the middle range where α is near 1/over 2, S=O(MTθ+ϵ) . This θ bounds the exponent of growth of the Riemann zeta function on its critical line Re s = 1/over 2. Van der Corput used an iteration which changed α at each step. The Bombieri–Iwaniec method, whilst still based on mean squares, introduces number‐theoretic ideas and problems. The Second Spacing Problem is to count the number of resonances between short intervals of the sum, when two arcs of the graph of y = f′(x) coincide approximately after an automorphism of the integer lattice. In the previous paper in this series [Proc. London Math. Soc. (3) 66 (1993) 1–40] and the monograph Area, lattice points, and exponential sums we saw that coincidence implies that there is an integer point close to some ‘resonance curve’, one of a family of curves in some dual space, now calculated accurately in the paper ‘Resonance curves in the Bombieri–Iwaniec method’, which is to appear in Funct. Approx. Comment. Math.