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UID:20260831T161056EDT-23346FOwvN@132.216.98.100
DTSTAMP:20260831T201056Z
DESCRIPTION:Title: Classification and Applications of K3 Surface Fibered Ca
 labi-Yau Threefolds\n\nAbstract: We introduce a generalization of Kodaira’
 s theory of elliptic surfaces for threefolds fibered by lattice polarized 
 K3 surfaces. Specializing to fibers of “nearly maximal” Picard rank\, we o
 btain a complete classification (and construction !) for these Calabi-Yau 
 threefolds. The class includes the famous “quintic mirror” and its Hodge-t
 heoretic analogues. This is joint work with Andrew Harder\, Andrey Novosel
 tsev\, and Alan Thompson. Time permitting\, we will formulate two applicat
 ions in theoretical physics. The first\, already mentioned in yesterday’s 
 Colloquium\, is to my new mirror symmetry conjecture with Harder and Thomp
 son. The second uses the periods of an iterated fibration structure in a t
 ower of Calabi-Yau manifolds to recursively construct the “n-sunset” Feynm
 an integrals to all loop orders. This last is joint with Andrey Novoseltse
 v and Pierre Vanhove.\n
DTSTART:20181130T160000Z
DTEND:20181130T170000Z
LOCATION:Room PK-5115 \, CA\, 201 Ave. President-Kennedy
SUMMARY:Charles Doran\, University of Alberta
URL:https://www.mcgill.ca/mathstat/channels/event/charles-doran-university-
 alberta-292153
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