Showing papers on "Biorthogonal system published in 1984"
01 Apr 1984
TL;DR: In this article, it was shown that the system of complex exponentials is not a basic sequence in L2(7r,7r) if A"+i − An > 1.
Abstract: A well-known result due to Ingham (3) shows that the system of complex exponentials {elXnt} is a basic sequence in L2(—7r,7r) whenever An+i — An > "y > 1. In this note, we show that the system need not be basic if A"+i — An > 1.
4 citations