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SUMMARY:Renzo Cavalieri (Colorado State University)
DTSTART:20231117T193000Z
DTEND:20231117T203000Z
DTSTAMP:20260406T161906Z
UID:agstanford/121
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/agstanford/1
 21/">A log/tropical take on Hurwitz numbers</a>\nby Renzo Cavalieri (Color
 ado State University) as part of Stanford algebraic geometry seminar\n\nLe
 cture held in 383-N.\n\nAbstract\nI will present some joint work with Hann
 ah Markwig and Dhruv Ranganathan\, in which we interpret double Hurwitz nu
 mbers as intersection numbers of the double ramification cycle with a loga
 rithmic boundary class on the moduli space of curves. This approach remove
 s the "need" for a branch morphism and therefore allows the generalization
  to related enumerative problems on moduli spaces of pluricanonical diviso
 rs - which have a natural  combinatorial structure coming from their tropi
 cal interpretation. I will discuss some generalizations springing out from
  this approach that are currently being pursued in joint work with Hannah 
 Markwig and Johannes Schmitt.\n
LOCATION:https://researchseminars.org/talk/agstanford/121/
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