A simplified proof for the limit of a tower over a cubic finite field Original Research Article

Recently Bezerra, Garcia and Stichtenoth constructed an explicit tower image of function fields over a finite field image, whose limit image attains the Zink bound image. Their proof is rather long and very technical. In this paper we replace the complex calculations in their work by structural arguments, thus giving a much simpler and shorter proof for the limit of the Bezerra, Garcia and Stichtenoth tower.