We prove among several results that under mild conditions any polynomial in Fq [t] is a strict sum of k4 kth powers improving on an exponential (k2 2k + 1) bound of Car-Effinger-Hayes.
|Original language||English (US)|
|Number of pages||10|
|Journal||Journal of Number Theory|
|State||Published - Dec 2008|
All Science Journal Classification (ASJC) codes
- Algebra and Number Theory