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May 7, 2014 at 21:05 answer added Will Sawin timeline score: 3
Mar 27, 2014 at 10:19 history edited Misha Verbitsky
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Mar 27, 2014 at 10:13 answer added Misha Verbitsky timeline score: 1
Feb 25, 2014 at 8:12 comment added Atsushi Kanazawa Not necessarily. The mirror quintic gives an example of a family over $\mathbb{P}^1$ whose monodromy group is non-trivial.
Dec 27, 2013 at 15:15 comment added Venkataramana If the base is simply connected, is not the monodromy group also trivial?
Dec 26, 2013 at 21:22 history edited Ariel CC BY-SA 3.0
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Dec 26, 2013 at 21:20 comment added Ariel You are right. I am interested in a more specific example, where $B$ is simply connected and the full monodromy group is generated by the local monodromies.
Dec 26, 2013 at 15:20 comment added Jason Starr You ask two different questions: (1) "Is it true that if each local monodromy is neat then $G$ is neat?", (2) "... is it true that $G$ is neat if it is generated by neat elements?" Typically these are different questions: the global monodromy group is not necessarily generated by local monodromies. There are geometric hypotheses that insure that the global monodromy group is generated by local monodromies, e.g., for the family of hyperplane sections of a fixed projective manifold obtained from a Lefschetz pencil of hypereplane sections. Did you want to impose such a hypothesis?
Dec 26, 2013 at 13:46 answer added Jason Starr timeline score: 1
Dec 26, 2013 at 13:08 history edited Ariel CC BY-SA 3.0
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Dec 26, 2013 at 12:05 review First posts
Dec 26, 2013 at 12:13
Dec 26, 2013 at 11:47 history asked Ariel CC BY-SA 3.0