Good cyclic codes and the uncertainty principle
Shai EvraHebrew University, Jerusalem, Israel
Emmanuel KowalskiETH Zürich, Switzerland
Alexander LubotzkyHebrew University, Jerusalem, Israel
A long standing problem in the area of error correcting codes asks whether there exist good cyclic codes. Most of the known results point in the direction of a negative answer.
e uncertainty principle is a classical result of harmonic analysis asserting that given a non-zero function on some abelian group, either or its Fourier transform has large support.
In this note, we observe a connection between these two subjects. We point out that even a weak version of the uncertainty principle for elds of positive characteristic would imply that good cyclic codes do exist. We also provide some heuristic arguments supporting that this is indeed the case.
Cite this article
Shai Evra, Emmanuel Kowalski, Alexander Lubotzky, Good cyclic codes and the uncertainty principle. Enseign. Math. 63 (2017), no. 3/4, pp. 305–332DOI 10.4171/LEM/63-3/4-4