搜索结果: 1-1 共查到“数论 1 norm”相关记录1条 . 查询时间(0.078 秒)
Littlewood asked how small the ratio $||f||_4/||f||_2$ (where $||.||_\alpha$ denotes the $L^\alpha$ norm on the unit circle) can be for polynomials $f$ having all coefficients in $\{1,-1\}$, as the de...