Mathematische Zeitschrift

, Volume 255, Issue 2, pp 343-355

First online:

Pluricanonical systems on irregular 3-folds of general type

  • Jungkai A. ChenAffiliated withDepartment of Mathematics, National Taiwan UniversityNational Center for Theoretical Sciences, Taipei Office Email author 
  • , Christopher D. HaconAffiliated withDepartment of Mathematics, University of Utah

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In this paper we prove that if X is an irregular 3-fold with χ(ω X ) > 0, then |mK X | is birational for all m ≥  5.