Projective hulls and characterizations of meromorphic functions J. AndersonJoseph CimaNorm LevenbergThomas Ransford Primary 32U15Secondary 32E9930J99Projective HullsMaximum PrinciplePluripotential Theory We give conditions characterizing holomorphic and meromorphic functions in the unit disk of the complex plane in terms of certain weak forms of the maximum principle. Our work is directly inspired by recent results of John Wermer, and by the theory of the projective hull of a compact subset of complex projective space developed by Reese Harvey and Blaine Lawson. Indiana University Mathematics Journal 2012 text pdf 10.1512/iumj.2012.61.4772 10.1512/iumj.2012.61.4772 en Indiana Univ. Math. J. 61 (2012) 2111 - 2122 state-of-the-art mathematics http://iumj.org/access/