科研之友
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摘要
The Hobby-Rice Theorem states that, given n functions f(j), there exists a multiplier h such that the integrals of f(j) h are all simultaneously zero. This multiplier takes values +/- 1 and is discontinuous. We show how to find a multiplier that is infinitely differentiable, takes values on the unit circle, and is such that the integrals of f(j)h are all zero.
- 出版日期2013
