A counterexample to the periodic orbit conjecture . The Picard group of a scheme over anartin ring . Types topologiques des polynomes . On the congruence subgroup problem . Frobenius avec singulatités - 1. Condimension un

@inproceedings{Sullivan1976ACT,
  title={A counterexample to the periodic orbit conjecture . The Picard group of a scheme over anartin ring . Types topologiques des polynomes . On the congruence subgroup problem . Frobenius avec singulatit{\'e}s - 1. Condimension un},
  author={Dennis Sullivan and Joseph Lipman and Takuo Fukuda and M. S. Raghunathan and Bernard Malgrange},
  year={1976}
}