Bilinear sum
= Bilinear sum
A bilinear sum has the form $\sum_{m,n}a_mb_nK(m,n)$, with two independently controlled coefficient sequences. Cauchy-Schwarz, completion, and large-sieve estimates exploit this separation of variables.
= Bilinear sum
A bilinear sum has the form $\sum_{m,n}a_mb_nK(m,n)$, with two independently controlled coefficient sequences. Cauchy-Schwarz, completion, and large-sieve estimates exploit this separation of variables.