Albert Ingham

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Albert Edward Ingham (3 April 19006 September 1967) was an English mathematician.

Ingham was born in Northampton. He obtained his Ph.D., which was supervised by John Edensor Littlewood, from the University of Cambridge. He supervised the Ph.D.s of Wolfgang Fuchs and Christopher Hooley. Ingham died in Chamonix, France.

Ingham proved[1] that if

\zeta\left(1/2+it\right)\in O\left(t^c\right)

for some positive constant c, then

\pi\left(x+x^\theta\right)-\pi(x)\sim\frac{x^\theta}{\log x},

for any θ > (1+4c)/(2+4c). Here ζ denotes the Riemann zeta function and π the prime counting function.

Using the best published value for c at the time, an immediate consequence of his result was that

gn < pn5/8,

where pn the n-th prime number and gn = pn+1pn denotes the n-th prime gap.

[edit] Books

  • The Distribution of Prime Numbers, Cambridge University Press, 1934 (Reissued with a foreword by R. C. Vaughan in 1990)

[edit] External links

  • O'Connor, John J., and Edmund F. Robertson. "Albert Ingham". MacTutor History of Mathematics archive.

[edit] References

  1. ^ Ingham, A. E. On the difference between consecutive primes, Quarterly Journal of Mathematics (Oxford Series), 8, pages 255–266, (1937)