A short proof of Hara and Nakai's theorem
arXiv:1307.8030 · doi:10.1090/S0002-9939-08-09610-X
Abstract
We give a short proof of the following theorem of Hara and Nakai: for a finitely bordered Riemann surface , one can find an upper bound of the corona constant of that depends only on the genus and the number of boundary components of .
4 pages, no figure