Timeline for Hamiltonian circle actions and Lefschetz pencils
Current License: CC BY-SA 2.5
3 events
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| Apr 19, 2010 at 12:37 | comment | added | Dmitri Panov | Don, I think, that if you want a more positive answer to the question, it is really worth to think what should be the best analogue of a Lesfshetz fibrations for projective manifolds with $\mathbb C^*$ action. If you will remove the restictions on Lefshetz fibration to be gereric (i.e. all singularities are double points), there could be more examples. If a "resonable" definition exists, who knows, maybe it could be generalised to symplectic cathegory to give a postivie answer, following the discussion of Tim | |
| Apr 19, 2010 at 8:36 | comment | added | Don Stanley | Thanks for your response. I guess it's possible to come up with examples using toric manifolds and various projections of polytopes onto intervals, but this is not something I really know about. | |
| Apr 16, 2010 at 23:40 | history | answered | Dmitri Panov | CC BY-SA 2.5 |