Ueda theory for compact curves with nodes Takayuki Koike Indiana University Mathematics Journal 2017 text pdf 10.1512/iumj.2017.66.6038 10.1512/iumj.2017.66.6038 en Indiana Univ. Math. J. 66 (2017) 845 - 876 state-of-the-art mathematics http://iumj.org/access/