Let p(z)=akzk be such that |p(eip)|≤1 for R and |p(1)|=a[0,1].An inequality of Dewan and Cavil for the sum |av|+|au|,0≤u<v≤n is sharpened.Let p(z)=abzk be such that for R,
文摘Let p(z)=akzk be such that |p(eip)|≤1 for R and |p(1)|=a[0,1].An inequality of Dewan and Cavil for the sum |av|+|au|,0≤u<v≤n is sharpened.Let p(z)=abzk be such that for R,
