Decomposable Iitaka fibration conjecture without the Q-factorial assumption
Let be a positive integer and let be a DCC set. A -decomposable Iitaka fibration is the decomposition notion defined for invariant Iitaka fibrations; its strong version additionally requires the relevant rounded linear systems to be birational.
Decomposable Iitaka fibration conjecture. There exist a positive integer , a finite set , and a DCC set , depending only on and , such that every lc pair of dimension with , , and either finite or all components of -Cartier, has both the weak and strong decomposable Iitaka fibration properties.
This is presented as a stronger variant of the earlier decomposable Iitaka fibration conjecture and remains open in the supplied context.
References
Primary source
Guodu Chen, Jingjun Han and Jihao Liu, “On effective log Iitaka fibrations and existence of complements”, arXiv:2301.04813 (2023).
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