Conjecture on rational approximations with prescribed numbers of prime divisors
Conjecture on rational approximations with prescribed numbers of prime divisors
Let be a real number, let , let , and let be a natural number. Suppose that there are integers with and such that
Prescribed-prime-divisors conjecture. There is a rational number such that , , and
This asserts that a rational approximation can be replaced by one with a prescribed number of distinct prime divisors in its denominator, with only a small loss in the approximation exponent. The supplied text gives heuristic motivation and related corollaries, but no resolution.
Sources & referencesView supporting material
Primary source
Tsz Ho Chan, “Approximating reals by sums of rationals”, arXiv:0704.2805 (2007).
Progress summary
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