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SUMMARY:Alexandre Zotine (Queen's University)
DTSTART:20230914T223000Z
DTEND:20230914T233000Z
DTSTAMP:20260422T054234Z
UID:SFUQNTAG/94
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/SFUQNTAG/94/
 ">Computing Higher Direct Images of Toric Morphisms</a>\nby Alexandre Zoti
 ne (Queen's University) as part of SFU NT-AG seminar\n\n\nAbstract\nSheaf 
 cohomology is a ubiquituous tool in algebraic geometry for understanding t
 he structure of varieties---but how does one actually get one's hands on c
 ohomology? In this talk\, I will discuss computing sheaf cohomology (and h
 igher direct images) of toric varieties\, which translate geometry into co
 mbinatorics. This translation is far more accessible and amenable to compu
 tation\, allowing us to get a more tangible grasp of the abstract construc
 tions. In particular\, I implemented an algorithm for computing the higher
  direct images of toric morphisms for line bundles in Macaulay2\, which I 
 will demonstrate. This is joint work with Mike Roth and Greg Smith.\n
LOCATION:https://researchseminars.org/talk/SFUQNTAG/94/
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