问题

Questions in category: 泛函分析 (Functional Analysis).

证明: $lim_{T \to + \infty} \frac{1}{π} \int_{- T}^{T} \frac{\sin j x}{x} d x = 1$ .

Posted by haifeng on 2012-07-07 16:13:51 last update 2012-07-07 16:13:51 | Answers (0) | 收藏

证明:

$lim_{T \to + \infty} \frac{1}{π} \int_{- T}^{T} \frac{\sin j x}{x} d x = 1.$

References:

张恭庆《泛函分析讲义》 P.174-175.